25
Strategic Management Journal Strat. Mgmt. J., 26: 887–911 (2005) Published online in Wiley InterScience (www.interscience.wiley.com). DOI: 10.1002/smj.492 SCHUMPETER’S GHOST: IS HYPERCOMPETITION MAKING THE BEST OF TIMES SHORTER? ROBERT R. WIGGINS 1 * and TIMOTHY W. RUEFLI 2 1 Fogelman College of Business and Economics, University of Memphis, Memphis, Tennessee, U.S.A. 2 McCombs School of Business and IC 2 Institute, University of Texas at Austin, Austin, Texas, U.S.A. At the center of Schumpeter’s theory of competitive behavior is the assertion that competitive advantage will become increasingly more difficult to sustain in a wide range of industries. More recently, this assertion has resurfaced in the notion of hypercompetition. This research examines two large longitudinal samples of firms to discover which industries, if any, exhibit performance that is consonant with Schumpeterian theory and the assertions of hypercompetition. We find support for the argument that over time competitive advantage has become significantly harder to sustain and, further, that the phenomenon is limited neither to high-technology industries nor to manufacturing industries but is seen across a broad range of industries. We also find evidence that sustained competitive advantage is increasingly a matter not of a single advantage maintained over time but more a matter of concatenating over time a sequence of advantages. Copyright 2005 John Wiley & Sons, Ltd. INTRODUCTION While Schumpeter’s (1942: 84) notion of a ‘gale of creative destruction’ has garnered the most atten- tion in the research and practitioner literatures, it is the role profit plays in motivating innovation as a precursor to creative destruction that is the key to his theories. Schumpeter (1939: 105) said that profit is ‘the premium put upon successful inno- vation in capitalist society and is temporary by nature: it will vanish in the subsequent process of competition and adaptation.’ Drucker (1983) observed: Schumpeter’s Economic Development does what neither the classical economists nor Marx nor Keynes was able to do: It makes profit fulfill an Keywords: Schumpeter; hypercompetition; performance; persistence; sustainability *Correspondence to: Robert R. Wiggins, Fogelman College of Business and Economics, University of Memphis, Memphis, TN 38152, U.S.A. E-mail: [email protected] economic function. In the economy of change and innovation, profit, in contrast to Marx and his the- ory, is not a Mehrwert, a ‘surplus value’ stolen from the workers. On the contrary, it is the only source of jobs for workers and of labor income. The theory of economic development shows that no one except the innovator makes a genuine ‘profit’; and the innovator’s profit is always quite short-lived. But innovation in Schumpeter’s famous phrase is also ‘creative destruction.’ It makes obsolete yes- terday’s capital equipment and capital investment. The more an economy progresses, the more cap- ital formation will it therefore need. Thus what the classical economists—or the accountant or the stock exchange—considers ‘profit’ is a genuine cost, the cost of staying in business, the cost of a future in which nothing is predictable except that today’s profitable business will become tomorrow’s white elephant. Schumpeter’s gale of creative destruction would create a disequilibrium in which ‘practically every enterprise [is] threatened and put on the defensive as soon as it comes into existence (Schumpeter, 1939: 107).’ For decades Schumpeter’s theory was Copyright 2005 John Wiley & Sons, Ltd. Received 16 May 2003 Final revision received 12 May 2005

Schumpeter's ghost: Is hypercompetition making the … · Schumpeter’s Ghost 889 A firm’s ability to maintain superior economic performance has a long and varied history in eco-nomic

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Strategic Management JournalStrat. Mgmt. J., 26: 887–911 (2005)

Published online in Wiley InterScience (www.interscience.wiley.com). DOI: 10.1002/smj.492

SCHUMPETER’S GHOST: IS HYPERCOMPETITIONMAKING THE BEST OF TIMES SHORTER?

ROBERT R. WIGGINS1* and TIMOTHY W. RUEFLI2

1 Fogelman College of Business and Economics, University of Memphis, Memphis,Tennessee, U.S.A.2 McCombs School of Business and IC2 Institute, University of Texas at Austin, Austin,Texas, U.S.A.

At the center of Schumpeter’s theory of competitive behavior is the assertion that competitiveadvantage will become increasingly more difficult to sustain in a wide range of industries. Morerecently, this assertion has resurfaced in the notion of hypercompetition. This research examinestwo large longitudinal samples of firms to discover which industries, if any, exhibit performancethat is consonant with Schumpeterian theory and the assertions of hypercompetition. We findsupport for the argument that over time competitive advantage has become significantly harderto sustain and, further, that the phenomenon is limited neither to high-technology industriesnor to manufacturing industries but is seen across a broad range of industries. We also findevidence that sustained competitive advantage is increasingly a matter not of a single advantagemaintained over time but more a matter of concatenating over time a sequence of advantages.Copyright 2005 John Wiley & Sons, Ltd.

INTRODUCTION

While Schumpeter’s (1942: 84) notion of a ‘gale ofcreative destruction’ has garnered the most atten-tion in the research and practitioner literatures, itis the role profit plays in motivating innovation asa precursor to creative destruction that is the keyto his theories. Schumpeter (1939: 105) said thatprofit is ‘the premium put upon successful inno-vation in capitalist society and is temporary bynature: it will vanish in the subsequent processof competition and adaptation.’ Drucker (1983)observed:

Schumpeter’s Economic Development does whatneither the classical economists nor Marx norKeynes was able to do: It makes profit fulfill an

Keywords: Schumpeter; hypercompetition; performance;persistence; sustainability*Correspondence to: Robert R. Wiggins, Fogelman College ofBusiness and Economics, University of Memphis, Memphis, TN38152, U.S.A. E-mail: [email protected]

economic function. In the economy of change andinnovation, profit, in contrast to Marx and his the-ory, is not a Mehrwert, a ‘surplus value’ stolenfrom the workers. On the contrary, it is the onlysource of jobs for workers and of labor income. Thetheory of economic development shows that no oneexcept the innovator makes a genuine ‘profit’; andthe innovator’s profit is always quite short-lived.But innovation in Schumpeter’s famous phrase isalso ‘creative destruction.’ It makes obsolete yes-terday’s capital equipment and capital investment.The more an economy progresses, the more cap-ital formation will it therefore need. Thus whatthe classical economists—or the accountant or thestock exchange—considers ‘profit’ is a genuinecost, the cost of staying in business, the cost ofa future in which nothing is predictable except thattoday’s profitable business will become tomorrow’swhite elephant.

Schumpeter’s gale of creative destruction wouldcreate a disequilibrium in which ‘practically everyenterprise [is] threatened and put on the defensiveas soon as it comes into existence (Schumpeter,1939: 107).’ For decades Schumpeter’s theory was

Copyright 2005 John Wiley & Sons, Ltd. Received 16 May 2003Final revision received 12 May 2005

888 R. R. Wiggins and T. W. Ruefli

occasionally mentioned but did not figure promi-nently in many analyses of business behavior.

Over the past decade, however, there has beenincreasing attention given to Schumpeterian the-ory and to hypercompetition in the academic lit-erature. Primary, of course, is D’Aveni’s seminalbook (1994), where he defines hypercompetitionas ‘an environment characterized by intense andrapid competitive moves, in which competitorsmust move quickly to build advantage and erodethe advantage of their rivals’ (D’Aveni, 1994:217–218), as well as Christensen’s (1997) book onthe problems of industry-leading companies facingcompetition from upstarts. Beyond that there havebeen two special issues of Organization Science(July and August 1996) devoted to hypercompeti-tion, an edited book (Ilinitch, Lewin, and D’Aveni,1998) that overlaps with the special issues, andsome articles in academic journals. Few of theseresearch studies have been empirically based, butthose that were will be reviewed below. In par-ticular, the current research and its findings willbe compared to McNamara, Vaaler, and Devers(2003) since it is the most comprehensive and com-parable study to date.

The purpose of our study is to add substan-tially to the base of empirical evidence concerningSchumpeter’s theory in terms of the nature andmagnitude of the claimed shift in the US economy.Given Schumpeter’s emphasis on the role of prof-its, the underlying subject of our study will be arecognized hallmark of traditional firm and indus-try behavior: sustained competitive advantage. Thereason for this is as D’Aveni (1994: 7) has noted:‘The pursuit of sustainable advantage has longbeen the focus of strategy.’ The key predictionsof Schumpeterian theory for strategy researchersare: (1) that firms are increasingly less able to sus-tain a strategic advantage over their competition;(2) that such behavior is characteristic of a widerange of industries; and (3) that sustained compet-itive advantage has become less a matter of findingand sustaining a single competitive advantage andmore a case of finding a series of competitiveadvantages over time and concatenating them intoa sustained competitive advantage. Thus all of thethree key Schumpeterian outcomes cited relate tosustained competitive advantage.

Our approach will be to develop a theoreticalframework and hypotheses that relate Schumpete-rian theory to sustained competitive advantage. Wethen examine not only 6,772 firms in 40 industries

over a 25-year period but also all 13,899 businessunits in 8,806 firms over a 17-year period (a super-set of the sample employed by the most recent andcomparable study of hypercompetition; McNamaraet al., 2003) and identify in a rigorous way thosefirms and business units that have been able tomaintain, for a sustained period of time, a com-petitive advantage in a fashion that yielded supe-rior economic performance. We will examine theseperiods of superior performance to determine if, inconsonance with hypercompetition, those periodshave become significantly shorter over time—and,if so, for which groups of industries. Then we willexamine these same firms for evidence that sus-tained competitive advantage is increasingly notsingular, but is instead composed more and moreoften of multiple short advantages over time.

THEORETICAL FRAMEWORKAND ANTECEDENT LITERATURE

Historically, traditional theories of strategic man-agement eschewed the Schumpeterian theory ofdisequilibrium as a base framework and choseinstead the equilibrium-oriented approach of indus-trial organization. In so doing they placed empha-sis on what Schumpeter (1947: 153) called the‘adaptive response’ of managers and on creat-ing a sustained competitive advantage for a firm.Thus for decades sustained competitive advan-tage has been a dominant concept in strategicmanagement research. Emerging from the struc-ture–conduct–performance paradigm of industrialorganization economics (Bain, 1959; Mason, 1939,1949) and popularized by the Harvard BusinessSchool and the work of Michael Porter (1985), sus-tained competitive advantage is the most influentialmechanism for explaining the persistence of supe-rior economic performance.1 The increasingly pop-ular resource-based view of the firm extends theinfluence of sustained competitive advantage andits result, above-normal returns, by making achiev-ing sustained competitive advantage the very rea-son for firms’ existence (Conner, 1991: 132).

1 Coff (1999) {, 1999 #718} points out that there may be casesin which firms have a competitive advantage in the marketfor outputs, but not for inputs—and thus may not realizesuperior economic performance. We shall explicitly assume thatcompetitive advantage obtains overall for a firm.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 889

A firm’s ability to maintain superior economicperformance has a long and varied history in eco-nomic and strategic management research. Neo-classical economics argues that persistent superioreconomic performance is an anomaly, a tempo-rary condition that will vanish when equilibriumis reached (Debreu, 1959). Industrial organizationeconomics argues that any persistence is the resultof industry structure, with mechanisms such asentry barriers preventing the equilibrium of neo-classical economics from being achieved (Bain,1959). Evolutionary economics (Nelson and Win-ter, 1982) as well as the related Austrian schoolof economics (Jacobson, 1992; Schumpeter, 1939)both argued that persistent superior economic per-formance is the result of cycles of entrepreneurialinnovation and imitation that create a continuingdisequilibrium where some firms can achieve per-sistence of performance although it will be even-tually eroded. Organizational and strategic man-agement theories have incorporated most of theseideas and added the concept of sustained competi-tive advantage (Porter, 1985) that can lead directlyto persistent superior economic performance.

There have been a large number of empiri-cal studies (summarized in Table 1) of the per-sistence of economic performance. Some of themajor exemplars of this line of research includeMueller (1986), which, in a time-series regression-based study of ROA of 600 large industrial firmsover the period 1950–72 utilizing Compustat andFTC databases, found that profit levels tended toconverge toward the mean, but that the highest-performing firms converged the most slowly, andsome of the high-performing firms’ profitabilityeven increased over time. Geroski and Jacquemin(1988), Schohl (1990), Droucopoulos and Lianos(1993), and Goddard and Wilson (1996), all usingnon-US samples found similar results to Mueller(1986), as did Waring (1996) in a large-scalestudy of 68 US industries. Jacobson (1988), ina time-series regression-based study of ROI overthe period 1970–83 utilizing the PIMS SBU-leveldatabase, also found that profit levels convergedover time but did not find persistence, and con-cluded that ‘the conditions under which marketforces do not drive return back to its competi-tive rate seem remote, if present at all’ (Jacobson,1988: 415). All of these studies were concernedwith the pattern of loss of abnormal profitabilitypositions—but none focused on the length of time

superior performance was maintained nor distin-guished between above and below normal prof-its. McGahan and Porter (1999) examined shocksto profitability (both positive and negative posi-tions) and estimated the effects of the factors ofindustry, firm and business unit level on the per-sistence of those shocks, but did not examine eitherthe degree of persistence of abnormal profitabilityor its incidence across specific industries. Theirmethodology relied on an autoregressive approachthat makes assumptions (e.g., that abnormal prof-its will decay) that we avoid. Their results nei-ther support nor conflict with results reported here.The primary insight to be gained from Table 1 isthe sheer number of studies that found persistentsuperior economic performance. Of the 27 stud-ies listed, only one did not find any evidence ofpersistence of performance, and that was Jacob-son (1988), which is also the only study to use thePIMS database.

None of these studies examined the effects oftime on persistence, and all of them, by usingautoregressive techniques, confounded low andhigh performance regression and found it difficultto identify which firms achieve persistence or forhow long they sustain it. All of these previousstudies were focused on examining the assumedrate of decay of persistence (both positive andnegative), rather than the timeframes of persis-tent superior performance—which is the test ofthe heart of Schumpeter’s theory and the focusof this study. By using a non-parametric method-ology that is better suited to the identification ofboth modal performers and outliers, this researchavoids the problems of the autoregressive time-series methodologies and their parametric assump-tions in particular. Further, the time frame of thisresearch, 1972–97, complements the time period(1950–72) used by Mueller (1986). Finally, andimportantly, the present research also supplementsthe accounting measures of performance used inthese prior studies with a market-based perfor-mance measure. Barber and Lyon (1996) showedthat the accounting performance data for all firmsin the Compustat database has been trending downover time. This latter point calls into question anyfindings of autoregressive studies of decay of per-formance—since such decay could be confoundedwith the decline of the central tendency of all firms.However, this decline could also be indicative ofprecisely the effects of proposed by Schumpeter.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

890 R. R. Wiggins and T. W. Ruefli

Tabl

e1.

Sum

mar

yof

empi

rica

lst

udie

sof

the

pers

iste

nce

ofsu

peri

orec

onom

icpe

rfor

man

ce

Stud

yD

atab

ase

Yea

rsin

clud

edIn

dust

ryty

pes

Num

ber

offir

ms

Dep

ende

ntva

riab

leSt

atis

tical

tech

niqu

eFi

ndin

gs

Car

ey(1

974)

Com

pust

at19

63–

7219

4-di

git

SIC

252

Net

profi

tm

argi

n,R

OA

,R

OE

Coe

ffici

ent

ofco

ncor

danc

ePe

rsis

tenc

ein

all

indu

stri

es

Mue

ller

(197

7)C

ompu

stat

1949

–72

Uns

peci

fied

472

RO

AO

LS

regr

essi

onPe

rsis

tenc

efo

rso

me

firm

sC

onno

llyan

dSc

hwar

tz(1

985)

Com

pust

at19

63–

82N

on-r

egul

ated

751

‘Exc

ess

valu

e’(m

arke

tva

lue—

book

valu

e/sa

les)

OL

Sre

gres

sion

,au

tore

gres

sion

Pers

iste

nce

for

posi

tive

profi

tfir

ms

(hig

her

profi

tsas

soci

ated

with

high

erpe

rsis

tenc

e)

Mue

ller

(198

6)FT

CC

ompu

stat

1950

–72

Man

ufac

turi

ng10

00R

OA

OL

Sre

gres

sion

Pers

iste

nce

for

som

efir

ms

asso

ciat

edw

ithm

arke

tsh

are,

indu

stry

;M

&A

dam

pens

pers

iste

nce

Cub

bin

and

Ger

oski

(198

7)

UK

DT

Ian

dD

AE

Cam

brid

geU

nive

rsit

y

1951

–77

483-

digi

t(U

Kon

ly)

217

‘Pro

fitra

te’

(ind

ustr

yav

erag

eco

mpa

red

tosa

mpl

eav

erag

e)

OL

Sre

gres

sion

and

full

info

.m

ax.

like

liho

od

Pers

iste

nce

asso

ciat

edw

ithfir

m-s

peci

ficef

fect

s(a

ndno

tw

ithin

dust

ry-s

peci

ficef

fect

s)

Ger

oski

and

Jacq

uem

in(1

988)

Cub

bin

Schw

alba

chB

AL

O

1949

–77

UK

1961

–81

Ger

1965

–82

Fr

8se

ctor

s51

UK

28G

er55

Fr

RO

A3r

dor

der

auto

regr

essi

onPe

rsis

tenc

em

uch

high

erin

UK

than

Fran

cean

dW

est

Ger

man

y;no

fact

ors

syst

emat

ical

lyas

soci

ated

with

pers

iste

nce

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 891Ja

cobs

on(1

988)

PIM

SC

RSP

and

Com

pust

at

1970

–83

1963

–82

Uns

peci

fied

2000

sbu

241

RO

IA

R(1

)re

gres

sion

Litt

lepe

rsis

tenc

eN

oef

fect

ofin

dust

ryco

ncen

trat

ion

Som

eef

fect

ofm

arke

tsh

are

Con

tini

(198

9)IS

TAT

Ann

ual

Surv

eyof

Mfr

s

1973

,19

77,

and

1981

Man

ufac

turi

ng(I

taly

only

)N

AG

ross

profi

tra

tioC

ontin

genc

yta

bles

Pers

iste

nce

inal

lin

dust

ries

Cub

bin

and

Ger

oski

(199

0)

UK

DT

Ian

dD

AE

Cam

brid

geU

nive

rsit

y

1948

–77

483-

digi

t(U

Kon

ly)

243

‘Pro

fitra

te’

(ind

ustr

yav

erag

eco

mpa

red

tosa

mpl

eav

erag

e)

1st

orde

rau

tore

gres

sion

Pers

iste

nce

asso

ciat

edw

ithfir

m-s

peci

ficef

fect

s(a

ndno

tw

ithin

dust

ry-s

peci

ficef

fect

s)

Jenn

yan

dW

eber

(199

0)

Publ

icdi

sclo

sure

s19

65–

82M

anuf

actu

ring

(Fra

nce

only

)45

0R

OA

(bef

ore

tax)

OL

Sre

gres

sion

Pers

iste

nce

for

both

high

perf

orm

ers

and

low

perf

orm

ers

Kes

side

s(1

990)

Com

pust

at19

67–

8234

44-

digi

tN

AR

OS

GL

Sre

gres

sion

Indu

stry

pers

iste

nce

asso

ciat

edw

ithsm

all

num

bers

offir

ms,

conc

entr

atio

n,gr

owth

,sc

ale,

high

capi

tal

requ

irem

ents

Khe

man

ian

dSh

apir

o(1

990)

Com

pust

at19

64–

8219

68–

82M

anuf

actu

ring

and

min

ing

(Can

ada

only

)

129

161

RO

A(b

oth

befo

rean

daf

ter

tax)

OL

Sre

gres

sion

Pers

iste

nce

(gre

ater

than

inU

S)as

soci

ated

with

prod

uct

diff

eren

tiatio

nM

uelle

r(1

990)

FTC

Com

pust

at19

50–

72M

anuf

actu

ring

(63

3-di

git

and

4-di

git)

551

RO

AO

LS

regr

essi

onPe

rsis

tenc

eas

soci

ated

with

mar

ket

shar

e,pr

oduc

tdi

ffer

entia

tion,

grow

th;

nega

tivel

yas

soci

ated

with

conc

entr

atio

n,M

&A

(con

tinu

edov

erle

af)

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

892 R. R. Wiggins and T. W. Ruefli

Tabl

e1.

(Con

tinu

ed)

Stud

yD

atab

ase

Yea

rsin

clud

edIn

dust

ryty

pes

Num

ber

offir

ms

Dep

ende

ntva

riab

leSt

atis

tical

tech

niqu

eFi

ndin

gs

Oda

giri

and

Yam

awak

i(1

990a

)

Cor

pora

tion

Ent

erpr

ise

Surv

ey

1964

–82

Man

ufac

turi

ng(J

apan

and

US

com

pari

sons

)

376

RO

A(a

fter

tax)

OL

Sre

gres

sion

Pers

iste

nce

for

both

high

and

low

perf

orm

ers,

asso

ciat

edw

ithin

dust

ryco

ncen

trat

ion,

mar

ket

shar

e,in

dust

ryad

vert

isin

gin

tens

ity

Oda

giri

and

Yam

awak

i(1

990b

)

Var

ious

1964

–82

Ca

1965

–82

Fr19

61–

82G

er19

64–

82Ja

p19

67–

85Sw

e19

51–

77U

K19

50–

72U

S

Man

ufac

turi

ngan

dno

n-fin

anci

al

161

Ca

450

Fr29

9G

er37

6Ja

p43

Swe

243

UK

551

US

RO

A(a

fter

tax)

OL

Sre

gres

sion

Pers

iste

nce

high

est

inU

S,fo

llow

edby

Can

ada

and

Fran

ce,

follo

wed

byU

K,

follo

wed

byJa

pan,

with

Wes

tG

erm

any

the

low

est

1964

–80

US

413

US

Scho

hl(1

990)

Publ

icdi

sclo

sure

s19

61–

84M

anuf

actu

ring

(Wes

tG

erm

any

only

)

283

‘Pro

fitra

te’

(firm

profi

t—sa

mpl

eav

g./s

ampl

eav

g.)

OL

Sre

gres

sion

(PA

and

PCm

odel

s)Pe

rsis

tenc

eun

der

both

part

ial

adju

stm

ent

and

poly

nom

ial

conv

erge

nce

mod

els

Schw

alba

chan

dM

ahm

ood

(199

0)

Publ

icdi

sclo

sure

s19

61–

82M

anuf

actu

ring

(Wes

tG

erm

any

only

)

299

RO

A(b

oth

befo

rean

daf

ter

tax)

,M

arri

s’s

V

Aut

oreg

ress

ion

Pers

iste

nce

asso

ciat

edw

ithfir

msi

ze,

mob

ility

barr

iers

,pr

oduc

tdi

ffer

entia

tion

Dro

ucop

oulo

san

dL

iano

s(1

993)

Ann

ual

Indu

stri

alSu

rvey

(NSS

G)

1963

–88

Man

ufac

turi

ng(G

reec

eon

ly)

500

‘Pro

fitra

te’

(val

uead

ded

−de

prec

iatio

n−

wag

es/c

apita

l+w

ages

)

OL

Sre

gres

sion

Pers

iste

nce

asso

ciat

edw

ithad

vert

isin

gin

tens

ity,

expo

rtin

tens

ity,

fore

ign

firm

s;ne

gativ

ely

affe

cted

byca

pita

lin

tens

ity,

size

,an

dri

sk

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 893

Lev

onia

n(1

994)

Com

pust

at19

86–

91B

anki

ng83

RO

EN

on-l

inea

rL

Sre

gres

sion

Pers

iste

nce

that

deca

yssl

owly

over

time

Kam

bham

pati

(199

5)R

eser

veB

ank

ofIn

dia,

Bom

bay

1970

–85

Mul

tipl

e(4

2)(I

ndia

only

)N

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.4%

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

894 R. R. Wiggins and T. W. Ruefli

Some have argued that hypercompetition is sopervasive that ‘all competitive advantage is tem-porary’ (Fine, 1998: 30). But not everyone agrees.Michael Porter stated ‘in many industries, how-ever, what some call hypercompetition is a self-inflicted wound, not the inevitable outcome of achanging paradigm of competition’ (Porter, 1996:61) and that it is most likely to be limited to asubset of firms in high-technology industries. Thequestion of which of these arguments should pre-vail is ultimately an empirical one, and that is thepurpose of this research, to examine this questionby a longitudinal examination of the nature of thetiming of the loss of sustained competitive advan-tage, the scope across industries, and the unitary ormultiple nature of competitive advantage. In short,we seek to test whether there is a basis on whichthe call for ‘advocates of the hypercompetitiveparadigm to back up their sweeping generalizationsabout the ubiquity of hypercompetition with rigor-ous large-sample empirical evidence’ (Makadok,1998) can be answered.

While the above focuses on the state of empir-ical research on persistent superior performance,there have also been some investigations specif-ically into hypercompetition. In the first notableantecedent empirical test of some of the aspectsof hypercompetition, Thomas (1996) performed alarge-scale study, examining over 200 manufac-turing industries during the period from 1958 to1991 and found that a ‘hypercompetitive shift’ hasindeed occurred in this sector of the US economy.These models used growth rates in stock marketvalue as the dependent variable, the results camefrom pooled cross-section time-series data ana-lyzed using regression-based methodologies, andthe sample was restricted to manufacturing firms.Our study will build on Thomas’s approach, butwill use alternate measures and methods to directlyfocus on the signature aspects of hypercompetition.Both accounting and market measures of perfor-mance will be employed to provide immediatecomparisons with antecedent research. Longitudi-nal data will be employed to better enable theexamination of possible effects of hypercompeti-tion over time. We also use a unique stratifica-tion methodology applied industry by industry toidentify superior performers and to control for thecommon effects of general economic and industryconditions and then employ event history analysisto better discern over time which firms and whichindustries are involved in the possible effects of

Schumpeterian dynamics. Further, we include notonly manufacturing firms but also mining, naturalresource, transportation, utility, financial, and ser-vice firms, thus providing evidence about the scopeof possible hypercompetitive effects.

Another empirical study that bears on hyper-competition is that of Young, Smith, and Grimm(1996), who, in an examination of single-businessfirms in the software industry, obtained resultsthat indicated that competitive moves, unless theywere extreme, contributed more to increased per-formance than to industry rivalry. These resultswere extended and greatly expanded upon by Fer-rier, Smith, and Grimm (1999) who, in a pairedsample empirical study of single or dominant busi-ness firms, examined the possible market shareerosion and dethronement of market leaders whenconfronted by challengers. Their findings indicatethat across a wide range of industries market lead-ers which are faced with relatively more aggres-sive challengers are likely to be subject to marketshare erosion and dethronement as market leader.This finding is confirmed by Foster and Kaplan(2001) who, working with a McKinsey sampleof 1008 firms over 36 years, found that even themost admired firms could not maintain their above-market performance for more than 10–15 years.

The most recent large-scale empirical examina-tion of hypercompetition was assayed by McNa-mara et al. (2003) and is the study most com-parable to the one reported here. Their study ofa subset of the firms in this study, covering theperiod 1977–97, included an autoregressive modelsimilar to that used by Mueller (1986) and Jacob-son (1988), but included an interaction term toexamine changes in the rate of decay of perfor-mance (both superior and inferior). This interac-tion term was not significantly different from zero,indicating no significant change in the decay rateover time. These studies also reported no increasein mortality rates, no increasing trend in indus-try dynamism, and no decreasing trend in industrymunificence. Based on these findings, they arguethat the tendency for researchers to believe inhypercompetition may be a result of researcherhindsight. While we do not dispute their find-ings on mortality, dynamism, and munificence, andwe applaud their focus on changes in the rate ofdecay in their autoregressive models, we reiter-ate our arguments about the use of autoregressivemodels that admix superior, average, and inferiorperformers, do not compensate for overall trends in

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 895

performance, require parametric assumptions, andthat are sensitive to outliers. Our approach willbe to focus only on the persistent superior per-formers and any effects on their rate of loss ofperformance. After all, the primary effect men-tioned in Schumpeterian theory and argued byD’Aveni (1994) is increased difficulty in sustaininga competitive advantage. To enhance direct com-parability with McNamara et al. (2003), we willinclude analyses utilizing the same Compustat seg-ment dataset that they (as well as McGahan andPorter, (1999) used.

THE RESEARCH QUESTIONS

Has persistent superior economic performancebecome more difficult to maintain over time, as theSchumpeterian theories would suggest? In whichindustries? Have firms increasingly sought sus-tained competitive advantage through concatena-tion of a set of shorter-term competitive advan-tages? These are the chief research questionsthat will be addressed through the formulation ofhypotheses and via a novel empirical study.

HYPOTHESIS DEVELOPMENT

Hypercompetition and loss of persistentsuperior economic performance

Conventional strategic management theory doesnot give a prominent role to either Schumpeteriantheory or hypercompetition. Porter (1980, 1985,1996) has long argued that classic industrial orga-nization solutions such as ‘increasing barriers toentry and gaining market power over rivals, sup-pliers and buyers will reduce rivalry within anindustry’ (Ilinitch et al., 1998: xxvi). Indeed, suchreasoning argues that we should see over timean increase in the length of time that competi-tive advantage can be maintained. McNamara et al.(2003) indicate there has been no change. On theother hand, D’Aveni (1994) clearly argues thathypercompetition is making it more and more dif-ficult for firms to maintain a competitive advan-tage. Therefore, we should see the average periodfor which firms sustain a competitive advantagedecrease over time. Following Schumpeterian the-ory and D’Aveni’s line of reasoning, the hypothesisis proposed:

Hypothesis 1: Periods of persistent superioreconomic performance have decreased in dura-tion over time.

Hypercompetition across multiple industries

Schumpeter (1939), followed by D’Aveni (1994:4), originally argued for the near-ubiquity of hyper-competition: ‘There are few industries and com-panies that have escaped this shift in compet-itiveness.’ Porter (1996) argued that hypercom-petitive effects are likely to be limited to high-technology industries. D’Aveni, in a more recentpublication (1999), proposed that there are fourenvironments of varying turbulence ranging from‘equilibrium’ to ‘disequilibrium.’ The latter envi-ronment he identifies with hypercompetition, buthe does not in this work specify the degree ofprevalence of any of his environments in the econ-omy. To formulate our next hypothesis we revertto Schumpeter and to D’Aveni’s original position,which leads directly to this formulation:

Hypothesis 2: Hypercompetition is not limited tohigh-technology industries, but occurs through-out most industries.

Hypercompetition and series of temporarycompetitive advantages

D’Aveni specifically stated, ‘Instead of seeking asustainable advantage, strategy in hypercompeti-tive environments now focuses on developing aset of temporary advantages’ (D’Aveni, 1994: 7).He reiterated this when he said, ‘If companiesare not seeking a sustainable competitive advan-tage, what is the goal of strategy in hypercom-petitive environments? The primary goal of thisnew approach to strategy is disruption of the sta-tus quo, to seize the initiative through creating aseries of temporary advantages’ (D’Aveni, 1994:10). Brown and Eisenhardt (1998) also argued thatsuccess can only come from a continuous streamof temporary advantages when the environmentis ‘relentlessly shifting’ (Brown and Eisenhardt,1997). These arguments lead directly to the fol-lowing hypothesis:

Hypothesis 3: Over time firms increasingly havesought to sustain competitive advantage by con-catenating a series of short-term competitiveadvantages.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

896 R. R. Wiggins and T. W. Ruefli

METHODS

Data

Data were collected from three primary sources:the Compustat PC-Plus database (both active andresearch files) for the 20 years from 1978 to 1997inclusive, the Compustat Back History databasefor the 5-year period from 1972 to 1977, andthe Compustat Segment Tapes for 1978–97. Weincluded data from the Compustat Back Historydatabase to provide 20 overlapping 5-year peri-ods (1974–97), as well as two additional years(1972–73) to alleviate some of the left-censoringproblem. SIC codes for firms that exited thedatabase prior to 1978 are not included in theBack History database; these firms were classi-fied employing the CRSP/Compustat Cross Refer-ence database maintained by the Johnson GraduateSchool of Management at Cornell University, andalso the Moody’s Industrial, OTC, Transportation,Financial, and Utilities Manuals. Two samples (afirm-level and a business-unit-level sample) werederived from the primary source data.

Dependent variables

While the theories used to develop the hypothe-ses relate to sustained competitive advantage, weare unable to directly operationalize the concept.Barney (1991: 102), for example, defines a sus-tained competitive advantage as a competitiveadvantage that ‘continues to exist after efforts toduplicate that advantage have ceased.’ What wecan operationalize is the consequence of sustainedcompetitive advantage, persistent economic per-formance. While some may find this less desir-able, it is consistent with the work of Porter, whorefers to ‘long-term profitability’ (Porter, 1985: 1)and ‘above-average performance in the long run’(Porter, 1985: 11) when discussing the outcomesof sustained competitive advantage.

Two measures were used to operationalize eco-nomic performance: return on assets (ROA), anaccounting measure, and Tobin’s q (the ratio offirm market value to the replacement cost of itsassets), a market measure, because some studieshave shown results that vary between accountingand market measures (Hoskisson, Hitt and John-son, 1993). ROA (net income divided by totalassets for firms, segment net income divided byidentifiable assets for business units) was selected

primarily for comparability with earlier economicand strategic management research in this area (seeTable 1, where most of the studies use ROA astheir primary or only measure of performance).Tobin’s q was selected because, although he didnot use it in his study, Mueller (1990: 8–14) sug-gested its potential, and because Tobin’s q was uti-lized by McGahan and Porter (1999) and Wigginsand Ruefli (2002), and so its inclusion enhancescomparability with their results. Tobin’s q wasoperationalized as the ratio of market value to thebook value of assets. This ratio has been shownto be not only empirically equivalent (Perfect andWiles, 1994) but also theoretically equivalent toTobin’s q (Varaiya, Kerin, and Weeks, 1987).

Superior economic performance was operation-alized as statistically significant above averageeconomic performance (relative to other firms inthe same industry for the firm-level analyses, andrelative to all business units, or all industries, or allfirms for the segment-level analyses) over a 5-yearperiod. Note that this is consistent with Besanko,Dranove, and Shanley (1996), who define compet-itive advantage as a firm outperforming its indus-try. This was determined using the Iterative Kol-mogorov–Smirnov (IKS) technique, which strati-fies time-series data into statistically significantlydifferent levels of performance using iterativecomparisons described in detail in Ruefli and Wig-gins (2000). A rolling 5-year window (Cool andSchendel, 1988; Fiegenbaum and Thomas, 1988)was used for all measures. Since this techniqueyields ordinal categorical data (Argresti, 1984),factors such as the common effects of general eco-nomic conditions, industry cycles, and product lifecycles are controlled in the stratification process.

However, IKS analysis can generate varyingnumbers of performance strata over time, whichmakes longitudinal comparisons difficult. We areinterested only in the firms with performanceabove the industry or reference set modal stratum.Therefore, as a form of a fortiori analysis (becauseit is conservative in regard to the hypotheses beingtested), the number of performance strata was com-pressed in each time period to three by creating twosupersets of strata: those above the modal stratumand those below the modal stratum. To validate thestratification supersets, discriminant function anal-ysis was employed in a confirmatory mode on theindustries studied. For these industries, all of thediscriminant functions were significant (p < 0.05)

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 897

for all variables, demonstrating the validity of thesuperset performance strata.

Persistent superior economic performance at thecorporate level was operationalized as superioreconomic performance lasting for six or more win-dows (i.e., a 10-year period), inasmuch as therewere two non-overlapping 5-year windows in sucha period, which eliminated potential bias owing tothe effect of a single year of outstanding perfor-mance. This establishes a very stringent test for theperformance effects of hypercompetition and onethat is tied directly to Schumpeterian theory, in thatit is only the significant shortening of the periodsduring which only those firms with significant sus-tained competitive advantage (i.e., over periods of10 years or more) that will be accepted as evi-dence. The first 5-year window in the firm-levelmodels is 1977–81 since that is the first windowin which an exit from the persistent superior eco-nomic performance stratum could occur. For thebusiness unit-level data, 5 years (one window) wasused to enhance comparability with McNamaraet al. (2003).

Independent and control variables

Because the primary question we are investigat-ing is the change over time of the rate at whichfirms lose superior profitability positions, the onlyindependent variable is time period. The strat-ification methodology controls for the commoneffects of general economic conditions, thus othercontrol variables included market share, industryconcentration, firm size, diversification, industrydensity, and dummy variables for each industry.These variables were operationalized as follows.For market share we used the ratio of each firm’stotal revenues to the total revenues of all firmsin the industry. Table 2 shows that market shareranged from 0 to 0.69 with a mean across allfirms of 0.04. Industry concentration was oper-ationalized by calculating the four-firm concen-tration ratio by dividing the combined total rev-enues of the four largest firms in each industryby the total revenues of all firms in the industry.As seen in Table 2, the industry four-firm con-centration ratio ranged from 0.13 to 0.98, with amean across all 40 industries of 0.57. For firm sizethe natural logarithm of total sales was employed.Table 2 shows the range of firm size as −10 to10.93 with a mean of 5.08. For diversificationwe used the Jacquemin–Berry entropy measure

of diversification (Jacquemin and Berry, 1979;Palepu, 1985), which is defined as

E =n∑

i=1

Pi ln(1/Pi)

where Pi is the ith segment’s share of the firm’stotal sales, which operates in n segments. As seenin Table 2, entropy ranged from 0 to 2.18 with amean of 0.25. For density we used the total num-ber of firms in each industry in each period, whichas Table 2 shows ranged from 5 to 336 with amean of 81.38. Because the dependent variablesrepresent 5-year windows, all of the control vari-ables were 5-year moving averages matched to thedependent variables’ 5-year windows. Finally, theindustry dummy variables were coded using thedeviation method, which compares the effect ofeach dummy variable to the overall effect. Thedescriptive statistics and correlations of the studyvariables are shown in Table 2.

Samples

For the firm-level sample we selected the same 40industries (listed in Table 3) used by Wiggins andRuefli (2002). The industries in this sample repre-sent 7 out of 10 1-digit SIC level categories. Thissample thus includes an overlap with Thomas’s(1996) sample, although most of the industriesconsidered are outside the manufacturing sectorand is a superset of the sample used by McNamaraet al. (2003). Table 3 shows the complete firm-level sample, along with some descriptive statis-tics. For the segment-level sample we used all ofthe available Compustat segment data, since wewere not utilizing regression and therefore did notface the same methodological issues as McGahanand Porter (1999) and McNamara et al. (2003), andtherefore did not have to screen the data and loseobservations.

Identification of superior performance

In essence, our research concentrates on an outlieror frontier phenomenon (Starbuck, 1993), i.e., theloss of superior economic performance. In orderto identify firms that have lost superior economicperformance, we first identified firms that obtainedsuperior economic performance. Most statisticaltechniques, however, are based on measures ofcentral tendency, and consequently their focus is

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

898 R. R. Wiggins and T. W. Ruefli

Tabl

e2.

Mea

ns,

stan

dard

devi

atio

ns,

min

ima,

max

ima,

and

biva

riat

eco

rrel

atio

nsfo

ral

lst

udy

vari

able

sa

Var

iabl

eM

ean

S.D

.M

in.

Max

.1

23

45

67

89

1R

OA

PSP

0.05

420.

2300

01

1.00

02

qPS

P0.

0801

0.27

000

10.

192∗∗

∗1.

000

3D

ensi

ty81

.380

066

.180

05

336

0.04

0∗∗0.

024

1.00

04

Ent

ropy

0.24

640.

4228

02.

1818

0.01

4−0

.007

−0.1

84∗∗

∗1.

000

5M

arke

tsh

are

0.04

040.

0933

00.

6925

0.01

8−0

.003

−0.2

11∗∗

∗0.

428∗∗

∗1.

000

6Si

ze5.

0841

2.60

80−1

010

.925

60.

030∗

0.04

5−0

.178

∗∗∗

0.34

1∗∗∗

0.44

6∗∗∗

1.00

07

4-Fi

rmC

onc.

0.57

020.

1761

0.13

010.

9751

0.00

60.

006

−0.2

64∗∗

∗0.

082∗∗

∗0.

254∗∗

∗−0

.114

∗∗∗

1.00

08

Peri

od12

.700

05.

8700

122

0.10

7∗∗∗

0.10

6∗∗∗

0.12

6∗∗∗

−0.1

37∗∗

∗−0

.025

0.06

9∗∗∗

−0.0

80∗∗

∗1.

000

9Pe

riod

∗∗2

195.

6842

144.

1698

148

40.

103∗∗

∗0.

103∗∗

∗0.

101∗∗

∗−0

.130

∗∗∗

−0.0

200.

082∗∗

∗−0

.091

∗∗∗

0.97

4∗∗∗

1.00

010

SIC

1000

0.01

040.

1017

01

0.01

0−0

.021

−0.0

90∗∗

∗0.

011

0.08

3∗∗∗

−0.0

030.

173∗∗

∗0.

061∗∗

∗0.

067∗∗

11SI

C10

4X0.

0308

0.17

270

10.

014

0.02

3−0

.047

∗∗∗

−0.0

67∗∗

∗−0

.010

−0.0

94∗∗

∗−0

.092

∗∗∗

0.03

3∗0.

034∗

12SI

C13

110.

0924

0.28

970

10.

030∗

−0.0

260.

655∗∗

∗−0

.040

∗∗∗

−0.0

90∗∗

∗−0

.241

∗∗∗

0.10

3∗∗∗

−0.0

35∗

−0.0

51∗∗

13SI

C15

310.

0101

0.09

980

10.

026

0.02

0−0

.062

∗∗∗

−0.0

250.

012

−0.0

35∗

−0.0

49∗∗

∗−0

.077

∗∗∗

−0.0

69∗∗

14SI

C26

210.

0192

0.13

700

10.

012

−0.0

25−0

.125

∗∗∗

0.00

5−0

.009

0.07

7∗∗∗

−0.1

03∗∗

∗−0

.026

−0.0

2415

SIC

267X

0.02

010.

1404

01

−0.0

15−0

.017

−0.1

23∗∗

∗0.

166∗∗

∗0.

352∗∗

∗0.

111∗∗

∗0.

192∗∗

∗−0

.028

∗−0

.020

16SI

C27

110.

0093

0.09

600

10.

019

−0.0

07−0

.097

∗∗∗

0.08

3∗∗∗

0.01

80.

022

0.01

2−0

.043

∗∗−0

.035

17SI

C27

210.

0170

0.12

940

1−0

.008

−0.0

04−0

.142

∗∗∗

0.08

6∗∗∗

0.14

9∗∗∗

−0.0

100.

195∗∗

∗−0

.021

−0.0

30∗

18SI

C27

310.

0114

0.10

620

10.

007

0.01

2−0

.098

∗∗∗

0.11

2∗∗∗

0.06

7∗∗∗

−0.0

010.

010

−0.0

95∗∗

∗−0

.093

∗∗∗

19SI

C28

340.

0969

0.29

580

1−0

.043

∗∗0.

025

0.04

7∗∗∗

0.15

0∗∗∗

−0.0

32∗

0.09

6∗∗∗

−0.3

90∗∗

∗0.

083∗∗

∗0.

088∗∗

20SI

C28

350.

0211

0.14

370

1−0

.037

∗0.

012

−0.0

70∗∗

∗−0

.035

∗0.

023

−0.1

06∗∗

∗0.

077∗∗

∗0.

123∗∗

∗0.

127∗∗

21SI

C28

510.

0087

0.09

290

10.

011

−0.0

22−0

.100

∗∗∗

−0.0

37∗∗

−0.0

110.

012∗∗

∗0.

160∗∗

∗−0

.008

−0.0

0922

SIC

2911

0.00

970.

0979

01

−0.0

100.

025

−0.0

68∗∗

∗0.

047∗∗

∗−0

.034

∗0.

029∗

−0.0

89∗∗

∗0.

022

0.01

723

SIC

3089

0.03

110.

1737

01

0.00

3−0

.029

−0.1

29∗∗

∗0.

068∗∗

∗0.

056∗∗

∗0.

010

0.12

1∗∗∗

0.01

60.

021

24SI

C33

1X0.

0335

0.17

980

10.

025

−0.0

05−0

.103

∗∗∗

0.14

8∗∗∗

−0.0

52∗∗

∗0.

069∗∗

∗−0

.083

∗∗∗

−0.0

97∗∗

∗−0

.084

∗∗∗

25SI

C35

5X0.

0116

0.10

710

10.

010

−0.0

06−0

.058

∗∗∗

−0.0

31∗

−0.0

36∗

−0.0

72∗∗

∗−0

.045

∗∗∗

0.03

9∗∗0.

043∗∗

26SI

C35

7X0.

0592

0.23

600

10.

013

0.01

20.

313∗∗

∗−0

.109

∗∗∗

−0.0

48∗∗

∗−0

.074

∗∗∗

0.11

6∗∗∗

0.04

1∗∗0.

026

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 899

27SI

C36

5X0.

0099

0.09

880

10.

000

−0.0

13−0

.087

∗∗∗

−0.0

10−0

.023

−0.0

120.

169∗∗

∗0.

072∗∗

∗0.

081∗∗

28SI

C36

610.

0145

0.11

960

10.

023

0.00

0−0

.058

∗∗∗

−0.0

57∗∗

∗−0

.010

−0.0

170.

208∗∗

∗−0

.003

−0.0

1329

SIC

3674

0.01

510.

1219

01

0.02

2−0

.017

−0.0

47∗∗

∗−0

.072

∗∗∗

−0.0

080.

011

0.12

0∗∗∗

0.05

6∗∗∗

0.06

8∗∗∗

30SI

C37

140.

0259

0.15

890

1−0

.027

0.01

4−0

.094

∗∗∗

0.01

3−0

.066

∗∗∗

0.05

0∗∗∗

0.07

9∗∗∗

−0.0

33∗

−0.0

27∗

31SI

C38

120.

0124

0.11

060

10.

019

0.02

0−0

.084

∗∗∗

0.04

0∗∗0.

017

−0.0

260.

108∗∗

∗−0

.059

∗∗∗

−0.0

55∗∗

32SI

C38

410.

0234

0.15

120

10.

004

0.03

0−0

.100

∗∗∗

−0.0

28∗

−0.0

46∗∗

∗−0

.104

∗∗∗

0.23

8∗∗∗

0.00

60.

000

33SI

C38

450.

0193

0.13

770

10.

000

−0.0

20−0

.031

∗∗∗

−0.0

73∗∗

∗0.

040∗∗

−0.0

61∗∗

∗−0

.015

0.08

2∗∗∗

0.07

6∗∗∗

34SI

C38

610.

0073

0.08

540

10.

004

0.01

6−0

.076

∗∗∗

0.00

10.

082∗∗

∗0.

043∗

0.15

7∗∗∗

−0.0

14−0

.016

35SI

C42

1X0.

0253

0.15

720

10.

005

0.00

9−0

.098

∗∗∗

−0.0

94∗∗

∗0.

045∗∗

∗0.

040∗

0.04

7∗∗∗

−0.0

21−0

.021

36SI

C45

120.

0093

0.09

590

10.

025

0.01

2−0

.071

∗∗∗

−0.0

55∗∗

∗−0

.032

∗0.

003

−0.0

64∗∗

∗−0

.100

∗∗∗

−0.0

96∗∗

37SI

C48

1X0.

0547

0.22

750

1−0

.009

0.01

80.

072∗∗

∗−0

.036

∗∗−0

.102

∗∗∗

−0.1

13∗∗

∗−0

.221

∗∗∗

0.06

2∗∗∗

0.05

3∗∗∗

38SI

C48

330.

0054

0.07

340

10.

006

0.00

0−0

.073

∗∗∗

0.01

2−0

.030

∗−0

.047

∗∗∗

0.14

9∗∗∗

−0.0

72∗∗

∗−0

.069

∗∗∗

39SI

C49

110.

0128

0.11

230

1−0

.013

0.00

6−0

.017

−0.0

26−0

.040

∗∗0.

035∗

−0.2

35∗∗

∗0.

023

0.02

740

SIC

5311

0.02

050.

1417

01

−0.0

01−0

.013

−0.1

13∗∗

∗0.

042∗∗

−0.0

030.

147∗∗

∗0.

069∗∗

∗−0

.026

−0.0

2241

SIC

5411

0.05

990.

2374

01

−0.0

37∗

−0.0

06−0

.143

∗∗∗

−0.0

83∗∗

∗−0

.034

∗0.

238∗∗

∗−0

.195

∗∗∗

−0.0

47∗∗

∗−0

.031

42SI

C58

120.

0567

0.23

120

1−0

.024

0.00

50.

024

−0.0

63∗∗

∗−0

.057

∗∗∗

0.03

4∗−0

.081

∗∗∗

0.00

70.

000

43SI

C60

2X0.

0422

0.20

100

10.

039∗∗

0.01

30.

308∗∗

∗−0

.122

∗∗∗

−0.0

79∗∗

∗0.

044∗∗

−0.3

44∗∗

∗−0

.105

∗∗∗

−0.1

06∗∗

44SI

C62

110.

0193

0.13

770

1−0

.008

−0.0

15−0

.093

∗∗∗

0.01

90.

092∗∗

∗0.

011

0.16

6∗∗∗

−0.0

04−0

.005

45SI

C63

110.

0151

0.12

190

10.

004

−0.0

15−0

.089

∗∗∗

0.15

1∗∗∗

0.06

2∗∗∗

0.11

2∗∗∗

0.01

40.

039∗∗

0.04

1∗∗

46SI

C70

110.

0315

0.17

470

1−0

.014

0.00

2−0

.130

∗∗∗

0.10

0∗∗∗

0.07

7∗∗∗

−0.0

080.

269∗∗

∗−0

.049

∗∗∗

−0.0

52∗∗

47SI

C73

1X0.

0015

0.03

930

10.

013

0.00

0−0

.041

∗∗∗

−0.0

230.

019

−0.0

010.

015

−0.0

42∗∗

−0.0

40∗∗

48SI

C73

720.

0236

0.15

180

1−0

.001

−0.0

070.

051∗∗

∗−0

.091

∗∗∗

−0.0

19−0

.011

−0.0

72∗∗

∗0.

097∗∗

∗0.

088∗∗

49SI

C78

120.

0019

0.04

390

1−0

.011

0.00

0−0

.034

∗∗0.

075∗∗

∗0.

141∗∗

∗0.

061∗∗

∗0.

050∗∗

∗0.

036∗∗

0.03

6∗∗

aB

ivar

iate

corr

elat

ions

for

indu

stry

dum

my

vari

able

som

itted

.T

heR

OA

sam

ple

cont

aine

d43

76to

tal

spel

lsan

dth

eTo

bin’

sq

sam

ple

cont

aine

d14

36to

tal

spel

ls.

∗∗∗

Sign

ifica

ntat

the

0.00

1le

vel

∗∗Si

gnifi

cant

atth

e0.

01le

vel

∗Si

gnifi

cant

atth

e0.

05le

vel

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

900 R. R. Wiggins and T. W. Ruefli

Tabl

e3.

Des

crip

tive

stat

istic

sfo

ral

lin

dust

ries

incl

udin

gm

odal

and

supe

rior

stra

tast

atis

tics

for

RO

Aan

dTo

bin’

sq

1974

–97

SIC

Indu

stry

nam

e1 N

2A

vgn

RO

A

3To

tal

spel

lsR

OA

4PS

Psp

ells

RO

A

5%

PSP

spel

lsR

OA

6#P

SPfir

ms

RO

A

7PS

Pra

tioR

OA

8M

odal

mea

nR

OA

9M

odal

S.D

.R

OA

10 SP mea

nR

OA

11 SP S.D

.R

OA

12A

vgn

(q)

13 Tota

lsp

ells

q

14 PSP

spel

lsq

15%

PSP

spel

lsq

16#P

SPfir

ms

q

17 PSP

ratio q

18M

odal

mea

nq

19M

odal

S.D

.q

20 SP mea

nq

21 SP S.D

.q

1000

Met

alM

inin

g66

21.4

542

937

8.62

%5

7.58

%−1

2.87

73.7

113

.54

32.7

414

.70

294

72.

38%

11.

52%

2.10

8.44

12.2

522

.45

104x

Gol

dan

dSi

lver

Ore

s18

057

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1147

106

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2.08

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768.

2519

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091

423

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243.

216.

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1311

Cru

dePe

trol

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739

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8532

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725

7.15

8.26

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217

1.30

3426

157

4.58

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2.44

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8410

1.26

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265

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1531

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rativ

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uild

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107

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087

225

2.87

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2.80

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33.5

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10

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934.

012.

411.

6826

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per

Mill

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546

355

11.8

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12.8

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2711

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19.9

539

927

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per

and

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054

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7910

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12.8

96.

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15%

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29%

1.55

3.89

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12.9

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ewsp

aper

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ishi

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384.

744.

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00

2721

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odic

alPu

blis

hing

3811

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231

4519

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410

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223

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9.65

6.81

8.20

164

3621

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37.

89%

2.21

8.06

3.85

2.40

2731

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kPu

blis

hing

4718

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362

4211

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510

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4.09

8.12

11.0

25.

7413

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273

72.

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13%

1.56

1.01

3.78

2.14

2834

Phar

mac

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258

82.6

016

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6145

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104

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itro

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ivo

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gnos

tics

112

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47

1.42

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2211

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29.

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5.59

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3.69

8.85

177

84.

52%

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8.92

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0

2911

Petr

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586

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324.

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5635

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630

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isc.

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ticPr

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orks

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1.74

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554.

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0.76

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355x

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ial

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596

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3915

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55.

8818

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putin

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716

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183

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811

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3.66

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62.9

1

365x

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ldA

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929

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553.

416.

7915

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3661

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phon

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ent

164

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962

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20.7

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8.62

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60

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icon

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ors

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ated

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5317

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8642

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850

161.

88%

21.

26%

2.24

4.31

4.33

6.28

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 901

3714

Aut

oPa

rts

and

Acc

esso

ries

133

44.4

088

889

10.0

2%7

5.26

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5520

.65

59.2

510

41.6

435

.95

719

233.

20%

32.

26%

1.43

3.38

3.27

2.21

3812

Nav

igat

ion

and

Gui

danc

eSy

stem

s69

30.4

560

936

5.91

%4

5.80

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6910

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11.6

55.

2925

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516

122.

33%

22.

90%

2.05

5.03

7.21

11.8

7

3841

Surg

ical

and

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ical

Equ

ipm

ent

159

40.8

581

774

9.06

%8

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.19

45.8

512

.25

7.08

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622

3.63

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1.89

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4833

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10.8

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786

243.

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31.

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6.62

91.7

443

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255.

41

3861

Phot

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phic

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ent

and

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lies

6624

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488

275.

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34.

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729

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10.3

74.

6318

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361

61.

66%

11.

52%

2.23

7.02

6.17

10.8

1

421x

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ckin

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xcep

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cal)

148

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40

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414.

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mun

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ions

305

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4024

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4.61

45.6

091

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1323

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11.6

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ions

7520

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10

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318.

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848

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els

and

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els

102

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411

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%2

1.96

%1.

403.

014.

145.

3173

1xA

dver

tisin

gA

genc

ies

6414

.25

285

72.

46%

11.

56%

1.11

15.3

38.

763.

3011

.50

230

00.

00%

00.

00%

1.97

9.26

13.2

025

.71

7372

Prep

acka

ged

Soft

war

e51

275

.00

1500

996.

60%

132.

54%

−4.8

943

.10

15.9

18.

7554

.90

1098

312.

82%

40.

78%

4.83

32.6

714

.04

105.

5378

12M

otio

nPi

ctur

ePr

oduc

tion

102

24.9

049

810

2.01

%1

0.98

%−1

5.27

394.

814.

9415

.34

20.0

040

07

1.75

%1

0.98

%2.

5313

.85

5.72

17.2

7

Tota

ls/A

vera

ges

6772

4220

132

827.

78%

350

5.17

%10

.48

166.

3832

822

1239

3.77

%13

92.

16%

8.65

62.2

7

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

902 R. R. Wiggins and T. W. Ruefli

on means and averages. In his study referencedearlier, Waring (1996) went so far as to removeoutliers as a means of improving his autoregres-sive models of decay (Waring, 1996: 1262). Ourargument, on the other hand, holds that these veryoutliers, those firms that gained, then possiblylost superior performance, are of primary interest,which is another reason why we eschew autore-gressive models.

After the data were classified by the IKS analy-sis into three performance strata (superior, modal,and inferior), the modal and inferior strata werediscarded, and the rest of the analysis concen-trated solely on those firms in the superior stra-tum. Further, for the corporate-level hazard mod-els, we only include those firms that remain inthe superior stratum for 10 years—the firms thatachieved truly persistent superior economic per-formance. In other words, our analyses were drivenby the small but significant differences betweenthe firms that maintain persistent superior eco-nomic performance and those that attained it butlost it, as opposed to the very large differencesbetween above-average performers and averageand below-average performers used by all previousstudies.

Event history analysis

We tested Hypotheses 1 and 2 by using discretetime event history analysis techniques (Allison,1984; Tuma and Hannan, 1984) to estimate mod-els of the rates at which firms exit the superiorperformance stratum. In the study of discrete statechange processes, event history methods are con-sidered preferable to linear regression models, asthe major problem with linear regression modelsis their failure to account for the timing of statechanges—which may be relevant (Allison, 1995).Moreover, we were interested in the dependence ofthe hazard rate on time, which cannot be readilyaccomplished with linear regression models (Alli-son, 1995).

Event history analysis estimates a hazard func-tion that allows the calculation of the instantaneousrate of change for a firm at time t . In the case ofpersistent superior economic performance (PSP),the hazard function was defined as follows:

h(t) = lim�t→0

Pr[∼PSP t, t + �t |PSPat t]

�t

where Pr[∼PSP t, t + �t |PSPat t] is the proba-bility of a firm exiting the superior performancestratum between time t and time t + �t , if andonly if the firm is in the superior performance stra-tum at time t . Firm transition rates were estimatedusing discrete time maximum likelihood models(Allison, 1984;, 1995), which apply logistic regres-sion to the analysis of time-series data.

Pattern analysis

To test Hypothesis 3 it was necessary to exam-ine the patterns of superior and not-superior per-formance over time. If firms were increasinglyforced by creative destruction to seek a series ofshort-term competitive advantages, those that weremost successful would be expected to concate-nate them in a seamless fashion, one followingthe other, so the effect on performance would notbe distinguishable from that achieved by a singlesustained competitive advantage. Thus the datasethere would not allow for a test of this type ofsuccess. On the other hand, it would be expectedthat superior performing firms which were lesssuccessful in concatenating a series of advantageswould reveal themselves by occasionally failingto achieve it, giving them a period of less thansuperior performance, following which superiorperformance would resume. This would give a per-formance pattern of superior, then not superior,then superior performance over time. If the asser-tions surrounding hypercompetition were true, thispattern should become significantly more preva-lent over time. In the context of the methodologyemployed here, the fraction of firms that wereabove modal performance levels then fell to abelow superior performance level for one 5-yearperiod and then rose back into the superior per-formance strata should increase over the studyperiod. To test Hypothesis 3, therefore, for bothperformance measures the incidence of the patternsuperior performance, then modal or below per-formance, then superior performance was notedin each three-period window as the window wasrolled through the 24 periods in the study. Thesenumbers were then subjected to a 2 × 2 contin-gency analysis that compared the incidence andnon-incidence of the pattern in the first and last10 three-period windows of the study. The likeli-hood ratio chi-square test of association was thenemployed for the patterns produced by ROA andby Tobin’s q.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 903

RESULTS

As the first step toward testing the hypotheses, thetwo sets of 40 industry samples were individuallystratified with the iterative Kolmogorov–Smirnovmethod as previously described. For each samplethis method formed multiple strata of statisticallysignificantly different performance levels. Table 4shows the modal strata means and standard devi-ations for both samples for all 40 industries incolumns 3 and 4 (ROA) and columns 13 and 14(Tobin’s q), and the above-average or superiorperformance (SP) strata means and standard devi-ations in columns 10 and 11 (ROA) and 20 and21 (Tobin’s q). The strata sizes were consistentbetween the two measures of performance. Thesegment-level data were similarly stratified at thethree levels of analysis (industry, corporate, andSBU) to determine the superior performing indus-tries, corporations, and SBUs. We retained only thesuperior performance strata to conduct the analysesto test Hypotheses 1 and 2.

Hypothesis 1: Hypercompetition andpersistence

Hypothesis 1 was represented in the model by thetime variable Period. For both performance mea-sures, the hazard of exiting the persistent supe-rior performance stratum did indeed significantlyincrease over time, as shown in Tables 4 and 5for the corporate-level sample, and Table 6 forthe business unit-level sample. Hypothesis 1 wasthus supported. (Note: the corporate event historymodels were also estimated with non-linear timeaxes, just as the business unit models were, butthe effect in these samples proved to be linear,so only the linear models are reported here.) Ascan be seen from the first column of Tables 4and 5 (All models), the hazard rate for the ROAsample increased more rapidly than the hazardrate for the Tobin’s q sample, indicating that atthe corporate level accounting performance wasmore affected by Schumpeterian dynamics thanwas market performance. Table 6 shows that whilethe hazard rate at the business unit level increasedmore slowly than at the corporate or industrylevel, at all three levels the hazard of losingsuperior performance positions was significantlyincreasing over time (although at a very slightlydecreasing rate, as indicated by the non-linear timeaxis).

Hypothesis 2: Hypercompetition acrossmultiple industries

Because none of the 3- and 4-digit industries con-tained enough spells of persistent superior eco-nomic performance to yield adequate statisticalpower, Hypothesis 2 was examined in two ways.First, the overall samples were divided into ‘high-tech’ industries (SIC codes 357x, 365x, 3661,3674, 481x, and 7372) and ‘low-tech’ industries(all other SIC codes). Second, the 40 industrysamples were aggregated to the 1-digit SIC level,yielding seven 1-digit industries. The ‘low-tech’models shown in Tables 4 and 5 show that forboth performance measures the hazard of exit wasstatistically significantly increasing for the non-high-technology industries over time, although themagnitude of the hazard was lower than for thehigh-tech industries. This supports Hypothesis 2.The industry models (which contain significantlyfewer spells than the total sample and are there-fore less powerful) show more mixed results byperformance measure. Table 4 shows that for onlytwo of the six industries with sufficient data wasthe Tobin’s q Period variable significant (in partbecause these subsamples contain few spells), pro-viding little additional support for Hypothesis 2.However, Table 5 shows that for six of the sevenindustries the ROA Period variable was statisti-cally significant at the 0.05 level or better, pro-viding additional support for Hypothesis 2. Thephenomenon was not limited to high-technologyindustries, although they appear to be affectedmore strongly.

Hypothesis 3: Hypercompetition and series oftemporary competitive advantages

The results for the likelihood ratio chi-square testof association for the patterns (superior, then lessthan superior, then superior performance) pro-duced for ROA and for Tobin’s q are given inTable 7. Here it can be seen that the chi-squaresare significant in both cases at the α = 0.001 level,indicating that the performance pattern is relativelymore prevalent in the last decade of the study thanit was in the prior decade. Thus Hypothesis 3 issupported.

DISCUSSION AND IMPLICATIONS

The results presented above provide evidence thatperiods of sustained competitive advantage, as

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

904 R. R. Wiggins and T. W. Ruefli

Tabl

e4.

Max

imum

likel

ihoo

des

timat

esof

pers

iste

ntsu

peri

orpe

rfor

man

ceex

it(T

obin

’sq

),19

77–

97

Var

iabl

eM

odel

All

aH

iTec

hL

oTec

hSI

C1

SIC

2SI

C3

SIC

4SI

C5

SIC

6

Peri

od0.

1056

∗∗∗

0.16

40.

083∗∗

0.09

290.

1294

∗∗0.

0559

0.46

70∗

0.01

49−0

.019

3(0

.026

7)(0

.170

)(0

.028

)(0

.070

4)(0

.049

6)(0

.033

8)(0

.185

7)(0

.054

9)(0

.095

8)D

ensi

ty0.

0024

−0.0

220.

005

−0.0

077

0.00

690.

0036

−0.1

835∗

0.10

57∗∗

0.01

20(0

.005

7)(0

.023

)(0

.006

)(0

.007

7)(0

.008

8)(0

.003

7)(0

.093

3)(0

.038

2)(0

.012

4)Si

ze0.

1364

∗∗0.

200

0.14

0∗0.

1070

0.06

480.

2121

∗0.

0674

1.88

23∗

0.58

05(0

.002

9)(0

.111

)(0

.057

)(0

.087

4)(0

.088

3)(0

.085

3)(0

.250

5)(0

.759

6)(0

.402

7)E

ntro

py−0

.201

3−0

.401

−0.2

06−0

.071

20.

2028

−0.0

544

−0.6

151

0.63

49−1

.253

9(0

.331

9)(1

.441

)(0

.352

)(1

.533

4)(0

.525

6)(0

.547

9)(1

.492

7)(1

.132

7)(2

.328

8)4-

Firm

conc

.ra

tio−3

.066

8−1

0.88

8−2

.705

−8.1

127

−0.6

766

1.87

30−2

5.92

81∗

10.7

668

3.54

86(2

.840

3)(1

2.66

7)(3

.100

)(4

.025

3)(1

.750

9)(1

.490

0)(1

2.20

61)

(6.1

061)

(7.6

483)

Mar

ket

shar

e0.

3339

−11.

229

0.57

1−1

.792

70.

5061

−10.

6449

141.

0405

−51.

8844

−1.6

021

(1.6

170)

(13.

784)

(1.6

19)

(11.

0903

)(1

.899

3)(6

.596

8)(1

16.7

311)

(27.

0414

)(5

.792

4)SI

C38

122.

1056

(0.9

809)

SIC

3841

2.50

42∗

2.41

1∗

(1.0

077)

(1.1

30)

Log

-lik

elih

ood

−369

.06

−53.

84−3

04.3

3−5

1.14

−91.

48−1

17.0

9−2

8.21

−40.

07−2

5.24

Spel

ls14

3623

411

2922

134

844

310

717

310

4

aN

on-s

igni

fican

tin

dust

rydu

mm

yva

riab

les

omitt

ed.

SIC

7m

odel

had

too

few

even

tsto

bees

timat

ed.

∗∗Si

gnifi

cant

atth

e0.

01le

vel

∗Si

gnifi

cant

atth

e0.

05le

vel

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 905

Tabl

e5.

Max

imum

likel

ihoo

des

timat

esof

pers

iste

ntsu

peri

orpe

rfor

man

ceex

it(R

OA

),19

77–

97

Var

iabl

eM

odel

All

aH

iTec

hL

oTec

hSI

C1

SIC

2SI

C3

SIC

4SI

C5

SIC

6SI

C7

Peri

od0.

1563

∗∗∗

0.15

2∗∗0.

122∗∗

∗0.

2337

∗∗∗

0.13

12∗∗

0.08

31∗∗

0.07

450.

1412

∗∗0.

1531

∗0.

2566

(0.0

189)

(0.0

61)

(0.0

18)

(0.0

478)

(0.0

425)

(0.0

273)

(0.0

449)

(0.0

548)

(0.0

724)

(0.1

121)

Den

sity

−0.0

078

−0.0

16−0

.001

0.00

37−0

.047

9∗∗∗

−0.0

001

−0.0

101

0.01

250.

0266

∗−0

.034

2(0

.004

3)(0

.011

)(0

.004

)(0

.002

2)(0

.011

1)(0

.002

6)(0

.007

5)(0

.012

1)(0

.010

4)(0

.021

0)Si

ze0.

0099

0.18

0−0

.008

−0.0

317

0.13

580.

0971

0.20

320.

4019

0.02

130.

1389

(0.0

540)

(0.1

03)

(0.0

55)

(0.1

030)

(0.1

789)

(0.0

951)

(0.1

886)

(0.3

583)

(0.2

203)

(0.2

439)

Ent

ropy

0.54

41∗

0.56

10.

160

0.47

970.

9483

0.23

420.

8936

1.12

010.

8982

−2.2

531

(0.2

290)

(0.5

62)

(0.2

31)

(0.5

546)

(0.5

354)

(0.4

013)

(0.5

820)

(0.6

466)

(0.7

505)

(1.6

678)

4-Fi

rmco

nc.

ratio

−0.4

001

−5.2

550.

367

0.93

39−2

.323

9−0

.345

50.

6542

2.68

705.

0832

−6.4

580

(1.8

570)

(4.8

39)

(1.9

31)

(1.1

356)

(1.8

382)

(1.1

441)

(1.3

748)

(2.6

019)

(3.9

076)

(4.9

201)

Mar

ket

shar

e0.

4192

−2.1

740.

304

−2.5

558

−2.0

569

−0.9

033

−9.7

181

−8.4

810

3.90

993.

3328

(1.2

727)

(3.3

37)

(1.2

84)

(3.5

270)

(2.3

705)

(2.3

306)

(8.2

464)

(11.

3193

)(3

.121

7)(4

.813

0)SI

C37

142.

6850

(1.1

286)

SIC

3812

2.14

11∗

(0.9

648)

SIC

3841

2.39

01∗

(1.0

848)

SIC

4512

1.80

0∗

(0.8

53)

Log

-lik

elih

ood

−723

.81

−172

.95

−663

.32

−131

.57

−92.

49−2

17.1

4−8

7.73

−79.

44−6

5.62

−42.

33Sp

ells

3735

662

2897

522

755

918

449

536

292

263

aN

on-s

igni

fican

tin

dust

rydu

mm

yva

riab

les

omitt

ed.

∗∗∗

Sign

ifica

ntat

the

0.00

1le

vel.

∗∗Si

gnifi

cant

atth

e0.

01le

vel.

∗Si

gnifi

cant

atth

e0.

05le

vel.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

906 R. R. Wiggins and T. W. Ruefli

Table 6. Maximum likelihood estimates of superiorperformance exit (ROA), 1980–96

Model

Variable Industry Corporate SBUPeriod 0.329∗∗∗ 0.251∗∗∗ 0.204∗∗∗

(0.097) (0.043) (0.033)Period2 −0.027∗∗∗ −0.010∗∗∗ −0.009∗∗∗

(0.006) (0.002) (0.002)Density −0.035∗∗∗ −0.002∗∗∗ −0.002∗∗∗

(0.008) (0.001) (0.000)Log- −488.30 −4932.61 −8100.52likelihoodSpells 1,276 12,446 17,900

∗∗∗ Significant at the 0.001 level

evidenced by its consequence, superior economicperformance, have been growing shorter over time.To answer the question in the title, this is evidencethat Schumpeter’s ghost has indeed appeared inthe form of hypercompetition. These results holdacross a wide range of sectors of the economy.These results provide direct support for Schum-peter’s theory and for the occurrence of hyper-competition. Coupled with the findings of Thomas(1996) of a hypercompetitive shift in the behaviorof the manufacturing sector, results here provideadditional support for the contention that a sub-stantial portion of the US economy is characterizedincreasingly by hypercompetitive behavior. Fur-ther, there is evidence to support the notion thatmanagers have responded to this hypercompetitiveenvironment by seeking in relatively more situa-tions, not a single sustained competitive advantage,but rather a series of short advantages that canbe concatenated into competitive advantage overtime.

In the absence of the innovative dynamic changethat characterizes hypercompetition, one possiblealternative explanation for the results here might be

deregulation. The most formerly regulated subsam-ple, Transportation and Utilities, shows evidenceof this in terms of Tobin’s q (but not in terms ofROA); however, the rest of the sample includedmany non-regulated industries—and these showstrongly diminishing duration of superior eco-nomic performance in terms of ROA. Anotheralternative explanation for the results reportedabove might be largely due to increased levelsof static competition. But, as in Thomas’ (1996)study of manufacturing, there is no clear mech-anism for such an increase in static competitionalone—especially across such a wide range ofindustries. Yet another alternative explanation forthe decrease in duration of competitive advantagemight be turbulence in the macro-environment.Such turbulence would, however, not be likely tohave a more significant effect on only those firmswith a sustained competitive advantage—at leastnot in the absence of substantial dynamic com-petitive effects. Further, McNamara et al. (2003:272) found no evidence of fundamental changes inindustry stability, dynamism, or munificence. Thusthe logical explanation for the reduced duration ofsustained competitive advantage across a variety ofdifferent industries appears to be attributable to ashift to hypercompetition. The independent empir-ical evidence presented by Thomas (1996) and theanecdotal evidence in D’Aveni (1994) reinforcethis conclusion.

The finding that hypercompetition characterizesa wider number of firms than just a limited num-ber in high-technology industries (Porter, 1996),and industries even beyond those manufacturingindustries studied by Thomas (1996), is impor-tant. The mechanisms for the spread of hyper-competition beyond those industries with a rapidlychanging technology base cannot be determinedby this research. We can, however, speculate thatthose industries with stable traditional technology

Table 7. Maximum likelihood estimates of performance pattern: superior–not superior–superior1978–97

Measure ROA Tobin’s q

1978–87 1988–97 1978–87 1988–97

Incidence of pattern 133 188 72 140Incidence of non-pattern 12,087 15,366 15,562 19,571N 27,774 35,345Likelihood chi-square 100,132.04∗∗∗ 150,484.29∗∗∗

∗∗∗ Significant at the 0.001 level

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 907

bases are increasingly subject to the effects ofchanges in information technology which are beingubiquitously deployed across all industries. Bettersources of competitive information, business intel-ligence and higher levels of internal flexibility canshorten competitive response time. Further, evenin these stable industries, managers who observedthe successful employment of hypercompetitivestrategies in more dynamic industries may importsuch strategies into their industries and innova-tively destabilize them. The wide appearance ofhypercompetitive effects has significant implica-tions for both practice and research.

Finally, an obvious question that these findingsinspire concerns why our results differ from thoseof the most comparable study: McNamara et al.(2003). First, as previously noted, there is the dif-ference in methods: their study utilized the same(albeit a more sophisticated version) autoregres-sive techniques used by most of the studies out-lined in Table 1. Second, their study examined thedecay of persistence for all business units (includ-ing average as well as poorly performing busi-ness units). In their own words, ‘with this model,we can assess the degree to which abnormallyhigher or lower business returns decay over timeto the mean’ (McNamara et al., 2003 (emphasisadded)). Our primary method only examined per-sistently superior performing business units andfirms, which is a more direct link to the Schum-peterian theoretical question regarding the effect

of creative destruction on the sustainability ofcompetitive advantage. Third, while both studiesused multiple samples and multiple methods, theirstudy included many other variables (dynamism,mortality, stability) that no proponent of the hyper-competitive approach has directly discussed, mak-ing most of their tests indirect tests, while ourprimary methods all focused solely on direct testsof Schumpeterian theory regarding persistent supe-rior performance. Further, our secondary analy-sis at the business unit level, using the samedataset as McNamara et al. (2003), shown graphi-cally in Figure 1 and using simple linear regressionreported in Table 8, found a clear and significantdecline in business unit performance over time atall levels of performance (with over 87% of thevariance in ROA explained by time alone, indi-cating a very strong trend in the performance dataover time, similar to the downward trend in thecorporate level data reported by Barber and Lyon,1996). Note that McNamara et al. (2003) focusedtheir analysis on the variance of returns, whichthey found not to change significantly over time,whereas we focused on the mean returns, whichdo change significantly over time. Again, neitherSchumpeter (1939) nor D’Aveni (1994) theorizeabout variance of returns.

Limitations and future research

The primary limitation of this research is thatwhile a key theoretical underpinning is sustained

0.600

0.400

0.200

0.000

-0.200

-0.400

-0.600

80-84 81-85 82-86 83-87 84-88 85-89 86-90 87-91 88-92 89-93 90-94 91-95

Above Model Below ALL

Figure 1. Mean ROA of business unit performance groups, 1980–96

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

908 R. R. Wiggins and T. W. Ruefli

Table 8. Business unit level mean ROA performance vs. time, 1980–96

Variable Model

All Superior Modal Inferior

Constant 0.118∗∗∗ (0.009) 0.432∗∗∗ (0.015) 0.096∗∗∗ (0.004) −0.152∗∗∗ (0.020)Period −0.010∗∗∗ (0.001) −0.016∗∗∗ (0.002) −0.003∗∗∗ (0.001) −0.027∗∗∗ (0.003)F 67.241∗∗∗ 59.104∗∗∗ 30.277∗∗∗ 102.293∗∗∗

R2 0.871 0.855 0.752 0.911d.f. 11 11 11 11N 71,607 14,843 43,063 13,701

∗∗∗ Significant at the 0.001 level.

competitive advantage, we are unable to actu-ally measure competitive advantage and are forcedinstead to use its generally accepted consequence,persistent superior economic performance. Thelogical and philosophical issues of the relationshipbetween competitive advantage and superior per-formance have been extensively discussed recently(Arend, 2003; Durand, 2002; Powell, 2001, 2002,2003), and we will not revisit these argumentshere. Whether or not there is a connection betweenhypercompetition and competitive advantage, orcompetitive advantage and superior performance,the fact remains that this study shows that some-thing is clearly affecting the ability of firms andbusiness units to sustain performance, and in theabsence of compelling alternative explanations weargue that that something is likely hypercompeti-tion.

Another limitation of this study its reliance onthe corporate- and segment-level data available inthe Compustat databases, which is further exacer-bated by potential industry identification problemscaused by using SIC codes. However, the prob-lem of diversified firms has been shown empiri-cally to be not significant. Yet another limitationis in the minimum time frame, 10 years, selectedto represent persistent superior economic perfor-mance. It may be that the appropriate time framesare shorter, varying by industry or by competitivearena, and future research to examine this wouldbe of interest. An associated limitation is that thedata employed are both right- and left-censored.However, they do cover almost three decades,and precisely the three decades in which the con-cepts of both sustained competitive advantage andhypercompetition rose to prominence in strategicmanagement research. The use of additional data(1972–73) to ameliorate the left-censoring prob-lem was also of benefit.

Our findings that hypercompetitive forces haveindeed affected the ability of firms to sustain supe-rior performance, taken together with the findingsof McNamara et al. (2003) that these same forcesdo not appear to affect all firms equally, suggestsseveral avenues for further research. First, the factthat both studies found that the effects varied overtime invite temporal extensions. It will be of par-ticular interest to extend the study to the time whenthe current economic downturn concludes. Theexamination of market measures during the boomand bust cycle of the 1987–2003 timeframe shouldprove interesting. Likewise, it would be interest-ing to extend the study geographically to see ifdifferent economic arrangements in Europe andJapan have an effect on the existence and extentof hypercompetition. The finding of patterns ofseries of short-term competitive advantages linkedover time to yield an ongoing competitive advan-tage invites a step back and the examination ofunder what conditions such behavior is possibleand analysis of the competitive responses to thisphenomenon. Finally, strategic management theorymight be revisited to investigate how Schumpete-rian theory might better be integrated and used toenrich existing approaches.

ACKNOWLEDGEMENTS

This work was supported in part by a grant, andin part by the 2004-05 Suzanne Downs PalmerResearch Professorship Award, both from theFogelman College of Business and Economics atthe University of Memphis. This research supportdoes not imply endorsement of the research resultsby either the Fogelman College or the Univer-sity of Memphis. The second author would alsolike to acknowledge the support of the Daniel

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 909

Stuart Endowment and the Herb Kelleher Cen-ter for Entrepreneurship at the McCombs Schoolof the University of Texas at Austin. The authorswish to thank Jay Barney, Jan Beyer, Ming-JerChen, Kathleen Conner, W. W. Cooper, RichardD’Aveni, Allison Davis-Blake, Janet Dukerich,Kathleen Eisenhardt, Frances Hauge Fabian, RobFolger, Brian Golden, Jovan Grahovac, Ira Har-ris, Michael Hitt, David Jemison, Preston McAfee,Reuben McDaniel, Gerry McNamara, Hao Ma,Richard Makadok, Paul Mang, Robert Nixon, GregNorthcraft, David Schkade, Herb Simon, PaulVaaler, Jack Walters, seminar participants at TexasChristian University, the University of Memphis,the University of Missouri, the University of Texasat Dallas, and the University of Texas at Austin,as well as the anonymous referees for commentsand suggestions on earlier versions of this research.Special thanks to Andy Henderson for method-ological assistance.

REFERENCES

Allison PD. 1984. Event History Analysis: Regression forLongitudinal Event Data . Sage: Beverly Hills, CA.

Allison PD. 1995. Survival Analysis Using the SASSystem: A Practical Guide. SAS Institute: Cary, NC.

Arend RJ. 2003. Revisiting the logical and researchconsiderations of competitive advantage. StrategicManagement Journal 24(3): 279–284.

Argresti A. 1984. Analysis of Ordinal Categorical Data .Wiley: New York.

Bain JS. 1959. Industrial Organization . Wiley: NewYork.

Barber BM, Lyon JD. 1996. Detecting abnormal operat-ing performance: the empirical power and specifica-tion of test statistics. Journal of Financial Economics41(3): 359–399.

Barney JB. 1991. Firm resources and sustained competi-tive advantage. Journal of Management 17: 99–120.

Besanko D, Dranove D, Shanley M. 1996. The Eco-nomics of Strategy . Wiley: New York.

Brown SL, Eisenhardt KM. 1997. The art of continuouschange: linking complexity theory and time-pacedevolution in relentlessly shifting organizations.Administrative Science Quarterly 42(1): 1–34.

Brown SL, Eisenhardt KM. 1998. Competing on theEdge: Strategy as Structured Chaos . Harvard BusinessSchool Press: Boston, MA.

Carey KJ. 1974. Persistence of profitability. FinancialManagement 3(2): 43–48.

Christensen CM. 1997. The Innovator’s Dilemma: WhenNew Technologies Cause Great Firms to Fail . HarvardBusiness School Press: Boston, MA.

Coff RW. 1999. When competitive advantage doesn’tlead to performance: the resource-based view and

stakeholder bargaining power. Organization Science10(2): 119–133.

Conner KR. 1991. A historical comparison of resource-based theory and five schools of thought withinindustrial organization economics: do we have anew theory of the firm? Journal of Management 17:121–154.

Connolly RA, Schwartz S. 1985. The intertemporalbehavior of economic profits. International Journal ofIndustrial Organization 3: 379–400.

Contini B. 1989. Organization, markets and persistenceof profits in Italian industry. Journal of EconomicBehavior and Organization 12: 181–195.

Cool K, Schendel DE. 1988. Performance differencesamong strategic group members. Strategic Manage-ment Journal 9(3): 207–223.

Cubbin J, Geroski P. 1987. The convergence of profitsin the long run: inter-firm and inter-industrycomparisons. Journal of Industrial Economics 35:427–442.

Cubbin J, Geroski PA. 1990. The persistence of profitsin the United Kingdom. In The Dynamics of CompanyProfits , Mueller DC (ed). Cambridge University Press:Cambridge, UK; 147–167.

D’Aveni RA. 1994. Hypercompetition: Managing theDynamics of Strategic Maneuvering . Free Press: NewYork.

D’Aveni RA. 1999. Strategic supremacy through disrup-tion and dominance. Sloan Management Review 40(3):127–135.

Debreu G. 1959. The Theory of Value. Wiley: New York.Droucopoulos V, Lianos TP. 1993. The persistence

of profits in the Greek manufacturing industry.International Review of Applied Economics 7(2):163–176.

Drucker PF. 1983. Schumpeter and Keynes. Forbes 23May, 124–128.

Durand R. 2002. Competitive advantages exist: a critiqueof Powell. Strategic Management Journal 23(9):867–872.

Ferrier WJ, Smith KG, Grimm CM. 1999. The roleof competitive action in market share erosion andindustry dethronement: a study of industry leaders andchallengers. Academy of Management Journal 42(4):372–388.

Fiegenbaum A, Thomas H. 1988. Attitudes towardrisk and the risk–return paradox: prospect theoryexplanations. Academy of Management Journal 31(1):85–106.

Fine CH. 1998. Clockspeed: Winning Industry Control inthe Age of Temporary Advantage. Perseus: Reading,MA.

Foster R, Kaplan S. 2001. Creative Destruction . Double-day: New York.

Geroski PA, Jacquemin A. 1988. The persistence ofprofits: a European comparison. Economic Journal98(391): 375–389.

Goddard JA, Wilson JOS. 1996. Persistence of profits forUK manufacturing and service sector firms. ServiceIndustries Journal 16(2): 105.

Hoskisson RE, Hitt MA, Johnson RA, Moesel DD. 1993.Construct validity of an objective (entropy) categorical

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

910 R. R. Wiggins and T. W. Ruefli

measure of diversification strategy. Strategic Manage-ment Journal 14(3): 215–235.

Ilinitch AY, Lewin AY, D’Aveni RA. 1998. Managing inTimes of Disorder: Hypercompetitive OrganizationalResponses . Sage: Thousand Oaks, CA.

Jacobson R. 1988. The persistence of abnormal returns.Strategic Management Journal 9(5): 415–430.

Jacobson R. 1992. The ‘Austrian’ school of strategy.Academy of Management Review 17(4): 782–807.

Jacquemin AP, Berry CH. 1979. Entropy measure ofdiversification and corporate growth. Journal ofIndustrial Economics 27(4): 359–369.

Jenny FY, Weber A-P. 1990. The persistence of profitsin France. In The Dynamics of Company Profits ,Mueller DC (ed). Cambridge University Press:Cambridge, UK; 123–126.

Kambhampati US. 1995. The persistence of profitdifferentials in Indian industry. Applied Economics 27:353–361.

Kessides IN. 1990. The persistence of profits inUS manufacturing industries. In The Dynamicsof Company Profits , Mueller DC (ed). CambridgeUniversity Press: Cambridge, UK; 59–76.

Khemani RS, Shapiro DM. 1990. The persistence ofprofitability in Canada. In The Dynamics of CompanyProfits , Mueller DC (ed). Cambridge University Press:Cambridge, UK; 77–104.

Levonian ME. 1994. The persistence of bank profits: whatthe stock market implies. Economic Review—FederalReserve Bank of San Francisco (2): 3–17.

Makadok R. 1998. Can first-mover and early-moveradvantages be sustained in an industry with lowbarriers to entry/imitation? Strategic ManagementJournal 19(7): 683–696.

Mason ES. 1939. Price and production policies of large-scale enterprise. American Economic Review 29:61–74.

Mason ES. 1949. The current state of the monopolyproblem in the United States. Harvard Law Review62: 1265–1285.

McDonald JT. 1999. The determinants of firm profitabil-ity in Australian manufacturing. Economic Record75(229): 115–126.

McGahan AM, Porter ME. 1999. The persistence ofshocks to profitability. Review of Economics andStatistics 81(1): 143–152.

McNamara G, Vaaler PM, Devers C. 2003. Same asit ever was: the search for evidence of increasingcompetition. Strategic Management Journal 24(3):261–278.

Mueller DC. 1977. The persistence of profits above thenorm. Economica 44: 369–380.

Mueller DC. 1986. Profits in the Long Run . CambridgeUniversity Press: Cambridge, UK.

Mueller DC (ed.). 1990. The Dynamics of CompanyProfits . Cambridge University Press: Cambridge, UK.

Nelson RR, Winter SG. 1982. An Evolutionary Theory ofEconomic Change. Belknap Press: Cambridge, MA.

Odagiri H, Yamawaki H. 1990a. The persistence ofprofits in Japan. In The Dynamics of CompanyProfits , Mueller DC (ed). Cambridge University Press:Cambridge, UK; 129–146.

Odagiri H, Yamawaki H. 1990b. The persistence ofprofits: international comparison. In The Dynamicsof Company Profits , Mueller DC (ed). CambridgeUniversity Press: Cambridge, UK; 169–186.

Palepu K. 1985. Diversification strategy, profit perfor-mance and the entropy measure. Strategic Manage-ment Journal 6(3): 239–255.

Perfect SB, Wiles KW. 1994. Alternative constructionsof Tobin’s q: an empirical comparison. Journal ofEmpirical Finance 1: 313–341.

Porter ME. 1980. Competitive Strategy: Techniques forAnalyzing Industries and Competitors . Free Press:New York.

Porter ME. 1985. Competitive Advantage: Creating andSustaining Superior Performance. Free Press: NewYork.

Porter ME. 1996. What is strategy? Harvard BusinessReview 74(1): 61–78.

Powell TC. 2001. Competitive advantage: logical andphilosophical considerations. Strategic ManagementJournal 22(9): 875–888.

Powell TC. 2002. The philosophy of strategy. StrategicManagement Journal 23(9): 873–880.

Powell TC. 2003. Strategy without ontology. StrategicManagement Journal 24(3): 285–291.

Roberts PW. 1999. Product innovation, product-marketcompetition and persistent profitability in theUS pharmaceutical industry. Strategic ManagementJournal 20(7): 655–670.

Ruefli TW, Wiggins RR. 2000. Longitudinal performancestratification: an iterative Kolmogorov–Smirnovapproach. Management Science 46(5): 685–692.

Ruefli TW, Wiggins RR. 2003. Industry, corporate andsegment effects and business performance: a non-parametric approach. Strategic Management Journal24(9): 861–879.

Schohl F. 1990. Persistence of profits in the longrun: a critical extension of some recent findings.International Journal of Industrial Organization 8(3):385–404.

Schumpeter JA. 1939. Business Cycles: A Theoretical,Historical, and Statistical Analysis of the CapitalistProcess . McGraw-Hill: New York.

Schumpeter JA. 1942. Capitalism, Socialism and Democ-racy . Harper: New York.

Schumpeter JA. 1947. The creative response in economichistory. Journal of Economic History 7: 149–159.

Schwalbach J, Mahmood T. 1990. The persistence ofprofits in the Federal Republic of Germany. InThe Dynamics of Company Profits , Mueller DC(ed). Cambridge University Press: Cambridge, UK;105–122.

Starbuck WH. 1993. Strategizing in the real world.International Journal of Technology Management 8:77–86.

Thomas LG III. 1996. Dynamic resourcefulness and thehypercompetitive shift. Organization Science 7(3):221–242.

Tuma NB, Hannan MT. 1984. Social Dynamics: Modelsand Methods . Academic Press: New York.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)

Schumpeter’s Ghost 911

Varaiya N, Kerin RA, Weeks D. 1987. The relationshipbetween growth, profitability, and firm value. StrategicManagement Journal 8(5): 487–497.

Waring GF. 1996. Industry difference in the persistenceof firm-specific returns. American Economic Review86(5): 1253–1265.

Wiggins RR, Ruefli TW. 2002. Sustained competitiveadvantage: temporal dynamics and the incidence

and persistence of superior economic performance.Organization Science 13(1): 81–105.

Young G, Smith KG, Grimm CM. 1996. ‘Austrian’ andindustrial organization perspectives on firm-levelcompetitive activity and performance. OrganizationScience 7(3): 243–254.

Copyright 2005 John Wiley & Sons, Ltd. Strat. Mgmt. J., 26: 887–911 (2005)