42
STUIES IN ECONOMIC HISTORY AND POLICY THE UNITED STATES IN THE TWNTIETH CENTURY Edited by Louis Galambos and Robert Gallman Other books in the series Peter D, McClelland and Alan L. Magdovitz: Crisis in the making: the political economy of New York State since 1945 Hugh Rockoff: Drastic measures: a history of wage and price controls in the United States William N. Parker: Europe, America, and the wider world: essays on the economic history of Western capitalism Richard H. K. Vietor: Energy policy in America since 1945: a study of business-government relations . Christopher L. Tomls: The state and the unions: labor relations, law, and the organized labor movement in America, 1880-1960 Leonard S, Reich: The making of American industrial research: science and business at GE and Bell, 1876-1926 Margaret 13, W, Graham: RCA and the VideoDisc: the business of research Michael A. l3emstein: The Great Depression: delayed recover and eco- nomic change in America, 1929-1939 . Michael J. Hogan: The Marshall Plan: America, Britain, and the reconstruc- tion of Western Europe, 1947-1952 David A. Hounshell and John Kenly Smith, Jr.: Science and corporate strategy: Du Pont R&D, 1902-1980 Simon Kuznets; edited by Robert Gallan: Economic development, the family, and income distribution: selected essays " , i i-c EA-~ .) \lt~ Thinking about growth And other essays on economic growth and welfare MOSES ABRAMOVITZ Stanford University il; Ii ì' i The right of ihë " Univ~f3ity a/Cambridge' 10 print and sell all manner of books WQS granted by Henry VI/I in /534. The Universi'y has printed and published coniinuolUlY since 1$84. CAMBRIDGE UNIVERSITY PRESS Cambridge New York Port Chester Melbourne Sydney

Thinking about growth CAMBRIDGE UNIVERSITY PRESS New York … · 2014. 2. 14. · Published by the Press Syndicate of the University of Cambridge The Pitt Building, Trumpington Street,

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  • ST

    UIE

    S IN

    EC

    ON

    OM

    IC H

    IST

    OR

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    TH

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    WN

    TIE

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    Edi

    ted

    by

    Loui

    s G

    alam

    bos

    and

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    ert G

    allm

    an

    Oth

    er b

    ooks

    in th

    e se

    ries

    Pete

    r D

    , McC

    lella

    nd a

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    lan

    L. M

    agdo

    vitz

    : Cri

    sis

    in th

    e m

    akin

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    epo

    litic

    al e

    cono

    my

    of N

    ew Y

    ork

    Stat

    e si

    nce

    1945

    Hug

    h R

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    ff: D

    rast

    ic m

    easu

    res:

    a h

    isto

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    f w

    age

    and

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    the

    Uni

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    Stat

    esW

    illia

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    . Par

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    Eur

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    Am

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    a, a

    nd th

    e w

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    wor

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    ssay

    s on

    the

    econ

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    his

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    of

    Wes

    tern

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    . K. V

    ieto

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    nerg

    y po

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    in A

    mer

    ica

    sinc

    e 19

    45: a

    stu

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    fbusiness-government relations .

    Chr

    isto

    pher

    L. T

    omls

    : The

    sta

    te a

    nd th

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    ions

    : lab

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    , and

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    mak

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    929-

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    .M

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    194

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    A. H

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    Ken

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    : Sci

    ence

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    cor

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    test

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    gy: D

    u Po

    nt R

    &D

    , 190

    2-19

    80Simon Kuznets; edited by Robert Gallan: Economic development, the

    fam

    ily,

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    geThe Pitt Building, Trumpington Street, Cambridge CB2 1RP

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    t pub

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    Con

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    amov

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    wth

    and

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    er e

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    s on

    eco

    nom

    ic g

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    nd w

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    re.

    (Stu

    dies

    in e

    cono

    mic

    his

    tory

    and

    pol

    icy)

    1. United States-Economic conditions, 2. Public

    wel

    fare

    -U

    nite

    d St

    ates

    - H

    isto

    ry. i

    . Titl

    e.11

    , Ser

    ies,

    HC

    106,

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    9 33

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    02

    To Carre, with love

    Brit

    ish

    Libr

    ary

    Cat

    alog

    uing

    in P

    ublic

    atio

    n D

    atà

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    amov

    itz, M

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    nkin

    g ab

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    essa

    ys o

    n ec

    onom

    ic g

    row

    th a

    ndw

    elfa

    re. -

    (St

    udie

    s in

    eco

    nom

    ichi

    stor

    y an

    d po

    licy;

    the

    Uni

    ted

    Stat

    esin

    the

    twen

    tieth

    cen

    tury

    ).1.

    Eco

    nom

    ic g

    row

    thi.

    Titl

    e II

    . Ser

    ies

    339.

    5

    ISBN 0 521 33396 2

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    ¡- I; L 1: \ I,.

  • i1'

    iThinkig about growth

    Eco

    nom

    ic g

    row

    th is

    one

    of

    the

    olde

    st s

    ubje

    cts

    in e

    cono

    mic

    s an

    d on

    e of

    the

    youn

    gest

    . It w

    as a

    pric

    ipal

    con

    cern

    of t

    he W

    ealth

    of N

    atio

    ns, a

    nd it

    file

    d th

    e th

    ough

    ts o

    f ec

    onom

    ists

    for

    the

    next

    ' thr

    ee q

    uart

    ers

    of a

    cent

    ury.

    As

    the

    Vic

    toria

    n A

    ge w

    ore

    on, h

    owev

    er, g

    row

    th lo

    st it

    s ho

    ldon the attention and imagiation of the great body of academic econo-

    mis

    ts. I

    t was

    left

    to M

    arx

    and

    his

    follo

    wer

    s, w

    hose

    pre

    mat

    ure

    obse

    s-si

    on w

    ith th

    e de

    mis

    e of

    cap

    itals

    m a

    ppea

    led

    to n

    eith

    er th

    e po

    litic

    alta

    stes

    nor

    the

    scie

    ntif

    ic b

    ent o

    f th

    e di

    scip

    lie's

    exp

    onen

    ts, A

    nd th

    en,

    afer the Second World War, following a hundred years of compara-

    tive

    negl

    ect,

    ther

    e w

    as a

    res

    urge

    nce

    of in

    tere

    st a

    nd s

    tudy

    that

    has

    been

    pro

    ceed

    ing

    with

    vig

    or f

    or th

    e la

    st f

    our

    deca

    des.

    In th

    e ne

    w e

    ffor

    t, m

    uch

    that

    had

    bee

    n kn

    own

    a ce

    ntur

    y an

    d m

    ore

    ago

    had

    to b

    e re

    lear

    ned.

    The

    new

    eff

    ort h

    as h

    ad th

    e be

    nefi

    t, ho

    wev

    er,

    of fa

    r be

    tter

    and

    mor

    e ex

    tens

    ive

    hist

    oric

    al a

    nd s

    tatis

    tical

    mat

    eria

    ls a

    nda

    mor

    e so

    phis

    ticat

    ed th

    eore

    tical

    fra

    mew

    ork.

    The

    acc

    ompl

    ishm

    ents

    of

    the

    new

    res

    earc

    h, h

    owev

    er, h

    ave

    been

    mod

    est,

    whi

    ch is

    test

    íony

    both

    to th

    e co

    mpl

    exity

    of

    the

    subj

    ect a

    nd to

    the

    litat

    ions

    of

    econ

    om-

    ics

    and

    of th

    e ot

    her

    soci

    al s

    cien

    ces

    as w

    ell.

    Yet

    the

    stud

    y of

    gro

    wth

    isgo

    ing

    on e

    nerg

    etic

    ally

    . It i

    s in

    tere

    stig

    , the

    refo

    re, t

    o as

    k w

    hat t

    hene

    wer

    wor

    k ha

    s ad

    ded

    to th

    e ol

    der

    and

    whe

    re th

    e su

    bjec

    t now

    stands. ~

    Thi

    s sk

    etch

    of

    the

    erra

    tic in

    volv

    emen

    t of

    econ

    omis

    ts w

    ith e

    cono

    mic

    grow

    th, a

    lthou

    gh it

    str

    etch

    es o

    ver

    man

    y pa

    ges,

    is s

    ti no

    mor

    e th

    an a

    sket

    ch. I

    t is

    spar

    e an

    d un

    shad

    ed, a

    s a

    sket

    ch m

    ust b

    e. I

    t dea

    ls m

    ainy

    with

    the

    caus

    es o

    f ec

    onom

    ic g

    row

    th, n

    ot it

    s co

    nseq

    uenc

    es. I

    t loo

    ks a

    t

    I ackowledge with thanks the caeful review and encouragement of colleagues who

    read

    ear

    ly d

    raft

    s of

    this

    pap

    er. T

    hey

    incl

    ude

    Eli

    Gin

    zber

    g, C

    harl

    es K

    idle

    berg

    er, R

    ich-

    ard

    Nel

    son,

    Nat

    han

    Ros

    enbe

    rg, W

    alt R

    osto

    w a

    nd th

    e ed

    itors

    of t

    his

    volu

    me,

    Lou

    isG

    alam

    bos

    and

    Rob

    ert G

    alln

    . I o

    we

    a sp

    ecia

    l deb

    t to

    Pau

    l Dav

    id's

    thor

    ough

    and

    crtic

    al r

    eadi

    g.

    3

  • 4T

    hink

    ing

    abou

    t gro

    wth

    past

    wor

    k la

    rgel

    y in

    term

    s of

    wha

    t it h

    as c

    ontr

    bute

    d to

    our

    pre

    sent

    unde

    rsta

    ndin

    g. I

    t dea

    ls w

    ith g

    row

    th o

    nly

    as th

    is p

    rese

    nts

    itsel

    f in

    adva

    nced

    cap

    italis

    t cou

    ntre

    s. I

    t con

    cent

    rate

    s on

    the

    incr

    ease

    of

    pro-

    duct

    ivity

    , the

    pri

    ncip

    al c

    ompo

    nent

    of

    per

    capi

    ta o

    utpu

    t gro

    wth

    ; and

    itse

    ts a

    side

    the

    com

    pani

    on s

    ubje

    ct o

    f po

    pula

    tion

    grow

    th. I

    t is

    con-

    cern

    ed m

    ainl

    y w

    ith th

    e ov

    eral

    pro

    duct

    ivity

    gro

    wth

    of

    natio

    ns; i

    t ne-

    glects the strctural change that growth requires, except as a coun-

    tr's

    cap

    acity

    to a

    ccom

    plis

    h su

    ch c

    hang

    e lit

    s its

    rat

    e of

    agg

    rega

    tegr

    owth

    . In

    all t

    hese

    way

    s, th

    is s

    ketc

    h of

    the

    terr

    ain

    is in

    com

    plet

    e;ev

    en s

    o, it

    ser

    ves

    a pu

    rpos

    e, p

    artic

    ular

    ly if

    mor

    e co

    mpl

    ete

    and

    de-

    taile

    d m

    aps

    are

    not a

    t han

    d.

    IC,

    !~ ~~ L

    i. G

    row

    th a

    nd th

    e ol

    der

    econ

    omis

    ts

    Ada

    m S

    mith

    was

    the

    fath

    er, n

    ot o

    iùy

    of m

    oder

    n ec

    onom

    ics,

    but

    mor

    epartcularly of the political economy of growth. The Wealth of Nations

    in it

    s ve

    ry ti

    tle a

    nnou

    nces

    Sm

    ith's

    con

    cern

    with

    the

    forc

    es th

    at g

    over

    nth

    e re

    lativ

    e le

    vels

    of

    pros

    peri

    ty a

    mon

    g co

    untr

    es a

    nd th

    at c

    ause

    som

    eto

    for

    ge a

    head

    and

    oth

    ers

    to f

    al b

    ehin

    d, H

    is v

    ery

    firs

    t cha

    pter

    s ar

    ede

    vote

    d to

    the

    adva

    ntag

    es o

    f th

    e di

    visi

    on o

    f la

    bor

    and

    its d

    epen

    denc

    eon

    the

    scal

    e of

    act

    ivity

    and

    the

    exte

    nt o

    f th

    e m

    arke

    t. Sm

    ith s

    aw th

    atla

    rge-

    scal

    e ac

    tivity

    per

    mtte

    d a

    spec

    ializ

    atio

    n an

    d si

    mpl

    icat

    ion

    oftr

    ades

    and

    task

    s th

    at r

    aise

    d th

    e sk

    is o

    f wor

    kers

    , sav

    ed th

    eir

    time,

    and

    enab

    led

    clev

    er a

    rtsa

    ns to

    dev

    ise

    labo

    r-sa

    vig

    tool

    s an

    d de

    vice

    s; it

    enla

    rged

    the

    outle

    t for

    cap

    ital t

    o em

    body

    the

    impr

    oved

    met

    hods

    , and

    affo

    rded

    bus

    ines

    smen

    a p

    rofi

    tabl

    e an

    d pr

    oduc

    tive

    way

    to e

    mpl

    oyth

    eir

    savi

    ngs,

    In

    Smith

    's v

    iew

    , the

    refo

    re, t

    he a

    dvan

    ce in

    pro

    duct

    ivity

    was

    an

    inte

    ract

    ive

    proc

    ess

    that

    ran

    fro

    m s

    cale

    of

    mar

    ket t

    o th

    e di

    visi

    onof

    labo

    r, th

    ence

    to th

    e en

    hanc

    emen

    t of

    skis

    , the

    inve

    ntio

    n of

    new

    tool

    s, a

    nd th

    e ac

    cum

    ulat

    ion

    of c

    apita

    l, fi

    nally

    fee

    ding

    bac

    k to

    mar

    ket

    scal

    e. S

    mith

    saw

    the

    polit

    ical

    inst

    itutio

    ns u

    nder

    whi

    ch p

    eopl

    ~ liv

    ed a

    sth

    e m

    ain

    dete

    rmna

    nt to

    thei

    r ab

    ilty

    to e

    xplo

    it th

    e sc

    ale

    adva

    ntag

    esm

    ade

    poss

    ible

    by

    trad

    e an

    d, th

    eref

    ore,

    to th

    eir

    abilt

    y to

    mak

    e fu

    ll us

    eof

    thei

    r ta

    lent

    s an

    d na

    tura

    l res

    ourc

    es.

    With

    few

    exc

    eptio

    ns, S

    mith

    thou

    ght,

    the

    "pol

    icy

    of E

    urop

    e" s

    houl

    dbe

    one

    of l

    aiss

    ez-f

    aire

    . But

    the

    Wea

    lth o

    f Nat

    ions

    als

    o di

    spla

    ys S

    mith

    'sliv

    ely

    sens

    e of

    the

    tend

    ency

    of

    peop

    le to

    mul

    tiply

    thei

    r nu

    mbe

    rs a

    ndto press on the physical

    liits of a stationary supply of land. He

    thou

    ght a

    nat

    ion

    best

    off

    and

    mos

    t pro

    gres

    sive

    whe

    n th

    ere

    was

    sti

    aga

    p be

    twee

    n its

    pop

    ulat

    ion

    and

    the

    max

    ium

    num

    ber

    its la

    nd c

    ould

    supp

    ort.

    Gro

    wth

    tend

    ed to

    be

    rapi

    d, th

    eref

    ore,

    whe

    n an

    incr

    easi

    ngpo

    pula

    tion

    and

    a gr

    owig

    agg

    rega

    te in

    com

    e w

    ere

    expa

    ndin

    g m

    arke

    tsan

    d op

    enin

    g th

    e w

    ay to

    a s

    ti m

    ore

    inte

    nse

    divi

    sion

    of

    labo

    r,

    Thi

    nkin

    g ab

    out g

    row

    th5

    Smith

    's th

    eori

    es w

    ere

    deve

    lope

    d an

    d re

    fine

    d in

    the

    deca

    des

    afte

    r th

    eap

    pear

    ance

    of

    his

    grea

    t boo

    k. M

    alth

    us's

    fam

    ous

    essa

    y on

    pop

    ulat

    ion,

    take

    n to

    geth

    er w

    ith R

    icar

    do's

    trea

    tmen

    t of

    dim

    inis

    hing

    ret

    urns

    in th

    eus

    e of

    land

    , sha

    rpen

    ed th

    e se

    nse

    of c

    onfl

    ct b

    etw

    een

    popu

    latio

    n an

    dre

    sour

    ces.

    At t

    hf' s

    áme

    tie, t

    here

    was

    a g

    row

    ig a

    ppre

    ciat

    ion

    of th

    epo

    ssib

    iltie

    s of

    pro

    gres

    s ba

    sed

    on th

    e ad

    vanc

    e of

    kno

    wle

    dge.

    Joh

    nSt

    uart

    Mi's

    Pri

    ncip

    les

    of P

    oliti

    cal E

    cono

    my

    (184

    8) g

    ave

    the

    econ

    omic

    s of

    grow

    th it

    s de

    fini

    tive

    stat

    emen

    t at t

    he h

    ands

    of

    the

    clas

    sica

    l eco

    nom

    ists

    ,T

    he o

    rgan

    iing

    them

    e of

    Mi's

    trea

    tise

    has

    a di

    stic

    tly m

    odem

    rin

    g:

    We

    may

    say

    , the

    n, .

    . . th

    at th

    e re

    quis

    ites

    of p

    rodu

    ctio

    n ar

    e La

    bour

    , Cap

    ital,

    and

    Lan

    d, T

    he in

    crea

    se o

    f pr

    óduc

    tion,

    ther

    efor

    e, d

    epen

    ds o

    n th

    e pr

    oper

    ties

    of th

    ese

    elem

    ents

    , It i

    s a

    resù

    lt,of

    the

    incr

    ease

    eith

    er o

    f th

    e el

    emen

    ts th

    em-

    selv

    es, o

    r of

    thei

    r pr

    oduc

    tiven

    ess,

    The

    law

    of

    the

    incr

    ease

    of

    prod

    uctio

    n m

    ust

    be a

    con

    sequ

    ence

    of

    the

    law

    s of

    thes

    e el

    emen

    ts; t

    he li

    mits

    to th

    e in

    crea

    se o

    fpr

    oduc

    tion

    mus

    t be

    the

    liits

    , wha

    teve

    r th

    ey a

    re, s

    et b

    y th

    ese

    law

    s. (

    Prin

    ci-

    ples

    , Ash

    ley

    editi

    on, p

    . 156

    ) ,

    Wha

    t are

    thes

    e la

    ws?

    On

    labo

    r, M

    i is

    a M

    alth

    usia

    n, F

    ree

    of r

    e-st

    rain

    t, po

    pula

    tion

    mul

    tiplie

    s ra

    pidl

    y so

    long

    as

    outp

    ut p

    er h

    ead

    ex-

    ceed

    s so

    me

    min

    imum

    sta

    ndar

    d. "

    The

    use

    (pe

    ople

    ) co

    mm

    only

    cho

    ose

    to m

    ake

    of a

    ny a

    dvan

    tage

    ous

    chan

    ge in

    thei

    r ci

    rcum

    stan

    ces,

    is to

    , tak

    eit

    out i

    n th

    e fo

    rm w

    hich

    , by

    augm

    entin

    g th

    e po

    pula

    tion,

    dep

    rive

    s th

    esu

    ccee

    ding

    gen

    erat

    ion

    of th

    e be

    nefit

    " (p

    . 161

    ). B

    ut M

    ill is

    a r

    eluc

    tant

    and

    som

    ewha

    t qua

    lied

    Mal

    thus

    ian.

    Con

    ceiv

    ably

    peo

    ple

    can

    com

    e to

    rais

    e th

    eir

    min

    ium

    sta

    ndar

    d. "

    Eve

    ry a

    dvan

    ce th

    ey m

    ake

    in e

    duca

    -tio

    n, c

    ivili

    zatio

    n an

    d so

    cial

    impr

    ovem

    ent,

    tend

    s to

    rai

    se th

    is s

    tand

    ard

    and

    ther

    e is

    no

    doub

    t tha

    t it i

    s gr

    adua

    lly, t

    houg

    h sl

    owly

    , ris

    ing

    in th

    ead

    vanc

    ed c

    ount

    res

    of W

    este

    rn E

    urop

    e" (

    p. 1

    61).

    Mill

    not

    ed th

    at p

    opul

    atio

    n gr

    owth

    rat

    es in

    thes

    e pr

    ogre

    ssiv

    e co

    un-

    tres

    had

    bee

    n de

    clin

    ing;

    yet

    he

    did

    not f

    ully

    trus

    t suc

    h ho

    pefu

    l sig

    ns,

    He

    fear

    ed th

    e fo

    rce

    of p

    eopl

    e's

    pow

    er o

    f na

    tura

    l inc

    reas

    e.C

    apita

    l too

    tend

    s to

    incr

    ease

    und

    er th

    e im

    puls

    e of

    its

    earn

    ing

    pow

    er,

    As

    with

    the

    earn

    ngs

    of la

    bor,

    how

    ever

    , the

    pro

    fit r

    ate

    mus

    t e'tc

    eed

    am

    iimum

    sta

    ndar

    d, T

    his

    thre

    shol

    d le

    vel i

    s lo

    w w

    here

    wea

    lth is

    abu

    n-da

    nt a

    nd p

    eopl

    e's

    "effe

    ctiv

    e de

    sire

    for

    accu

    mul

    atio

    n" is

    str

    ong.

    It is

    high

    whe

    re b

    usin

    ess

    is r

    isky

    and

    pro

    pert

    y in

    secu

    re.

    If la

    bor

    wer

    e th

    e on

    ly e

    lem

    ent i

    n pr

    oduc

    tion,

    out

    put w

    ould

    incr

    ease

    prop

    ortio

    nate

    ly w

    ith p

    opul

    atio

    n. B

    ut c

    apita

    l, si

    nce

    it is

    als

    o an

    ele

    -m

    ent i

    n pr

    oduc

    tion,

    impo

    ses

    a lim

    it, u

    nles

    s it

    grow

    s at

    the

    sam

    e ra

    teas

    labo

    r; b

    ut c

    apita

    l can

    not l

    ong

    incr

    ease

    fas

    ter

    with

    out s

    wif

    ty d

    rivi

    ngth

    e pr

    ofit

    rate

    dow

    nwar

    d. A

    nd s

    ince

    land

    , whi

    ch is

    by

    defin

    ition

    infi

    xed

    supp

    ly, i

    s a

    thir

    d el

    emen

    t, th

    e in

    crea

    se o

    f bo

    th c

    apita

    l and

    labo

    rm

    ust d

    eclin

    e an

    d ev

    entu

    ally

    com

    e to

    a h

    alt,

    even

    if th

    ey th

    emse

    lves

  • 6T

    hink

    ing

    abou

    t gro

    wth

    incr

    ease

    in s

    tep

    with

    one

    ano

    ther

    , The

    y m

    eet d

    imni

    shin

    g re

    turn

    s as

    they

    are

    em

    ploy

    ed to

    geth

    er w

    ith a

    fix

    ed a

    mou

    nt o

    f la

    nd; t

    he r

    etur

    n to

    capi

    tal i

    s th

    en d

    nven

    dow

    n as

    ren

    ts in

    crea

    se a

    t the

    exp

    ense

    of

    prof

    it.T

    he c

    onse

    quen

    t dec

    line

    in th

    e ra

    te o

    f cap

    ital a

    ccum

    ulat

    ion,

    toge

    ther

    with

    the

    nse

    in th

    e pn

    ce o

    f fo

    od, r

    educ

    es th

    e re

    al in

    com

    e of

    wor

    kers

    ,T

    he r

    ate

    of p

    opul

    atio

    n gr

    owth

    is a

    lso

    redu

    ced.

    The

    re is

    , the

    refo

    re, a

    ninherent tendency for growth to cease: '

    It m

    ust a

    lway

    s ha

    ve b

    een

    seen

    , mor

    e or

    less

    dis

    tictly

    by

    polit

    ical

    eco

    no-

    mis

    ts, t

    hat t

    he in

    crea

    se o

    f w

    ealth

    is n

    ot b

    ound

    less

    : tha

    t at t

    he e

    nd o

    f w

    hat

    they

    term

    the

    prog

    ress

    ive

    stat

    e lie

    s th

    e st

    atio

    nary

    sta

    te, t

    hat a

    ll pr

    ogre

    ss in

    wea

    lth is

    but

    a p

    ostp

    onem

    ent o

    f th

    is, a

    nd th

    at e

    ach

    step

    in a

    dvan

    ce is

    an

    appr

    oach

    to it

    , (p.

    746

    )

    Unl

    ike

    his

    grea

    t pre

    dece

    ssor

    s, h

    owev

    er, M

    il di

    d no

    t bel

    ieve

    that

    the

    "pro

    gres

    s of

    soc

    iety

    mus

    t 'en

    d in

    sha

    low

    s an

    d in

    mis

    enes

    ' " (

    p.74

    7)' M

    alth

    us h

    imse

    lf ha

    d re

    cogn

    ized

    that

    the

    incr

    ease

    of p

    opul

    atio

    nco

    uld

    be b

    roug

    ht to

    a h

    alt b

    efor

    e in

    com

    es f

    ell t

    o th

    e ba

    re m

    imum

    requ

    ired

    to s

    uppo

    rt li

    fe. I

    t mig

    ht r

    emai

    n m

    uch

    high

    er if

    peo

    ple

    cam

    eto

    insi

    st o

    n a

    high

    er s

    tand

    ard

    of li

    vig.

    Mill

    arg

    ued

    that

    res

    trai

    nts

    onbi

    rths

    wer

    e ne

    cess

    ary

    even

    in p

    rogr

    essi

    ve c

    ount

    res

    to p

    reve

    nt p

    opul

    a-tio

    n fr

    om o

    utst

    rppi

    ng th

    e in

    crea

    se o

    f ca

    pita

    L. T

    he s

    ame

    rest

    rain

    ts,

    how

    ever

    , mig

    ht m

    aint

    ain

    a co

    mfo

    rtab

    le c

    onqi

    tion

    even

    in a

    sta

    tiona

    rst

    ate,

    whi

    ch th

    en w

    ould

    hol

    d ou

    t ver

    y fa

    vora

    ble

    pros

    pect

    s fo

    r th

    ein

    telle

    ctua

    l and

    mor

    al d

    evel

    opm

    ent o

    f pe

    ople

    (B

    ook

    iv, C

    h. V

    i).

    Whe

    ther

    the

    stat

    iona

    ry s

    tate

    that

    loom

    s be

    fore

    nat

    ions

    is o

    ne o

    fco

    mfo

    rt o

    r m

    iser

    y, h

    owev

    er, l

    oom

    it d

    oes:

    ". .

    . w

    e ar

    e al

    way

    s on

    the

    verg

    e of

    it, a

    nd. ,

    , if

    we

    have

    not

    rea

    ched

    it lo

    ng a

    go, i

    t is

    beca

    use

    the

    goal

    itse

    lf f

    les

    befo

    re u

    s" (

    p. 7

    46),

    The

    for

    ce th

    at, i

    n th

    e la

    st a

    naly

    sis,

    kee

    ps th

    e st

    atio

    nary

    sta

    te a

    t bay

    is "

    impr

    ovem

    ent i

    n th

    e pr

    oduc

    tive

    arts

    " -:

    tech

    nolo

    gica

    l pro

    gres

    s, w

    ew

    ould

    say

    . Mi's

    dis

    cuss

    ion

    redu

    ces

    the

    emph

    asis

    that

    Sm

    ith h

    adpl

    aced

    on

    an e

    xten

    sion

    of

    the

    mar

    ket a

    nd d

    ivis

    ion

    of la

    bor.

    Mi

    view

    ed th

    e ec

    onom

    ies

    of s

    cale

    as

    affo

    rdin

    g on

    ly tr

    ansi

    tory

    rel

    ief

    unti

    popu

    latio

    n be

    com

    es d

    ense

    eno

    ugh

    "to

    allo

    w th

    e pn

    ncip

    al b

    enef

    its o

    fco

    mbi

    natio

    n of

    labo

    r" (

    pp. 1

    91-9

    2). T

    here

    afte

    r, p

    rogr

    ess

    beco

    mes

    ara

    ce:

    Whether, at the present or any other tie, the produce of industr proportion-

    ally

    to th

    e la

    bour

    em

    ploy

    ed, i

    s in

    crea

    sing

    or

    dim

    nish

    ig, .

    . de

    pend

    s up

    onw

    heth

    er p

    opul

    atio

    n is

    adv

    anci

    g fa

    ster

    than

    impr

    ovem

    ent,

    or im

    prov

    emen

    tthan population. (p. 191)

    Mill

    's s

    hift

    of

    emph

    asis

    ref

    lect

    s th

    e se

    vent

    y-fi

    ve y

    ears

    that

    had

    pass

    ed b

    etw

    een

    Smith

    , who

    wro

    te o

    nly

    on th

    e ev

    e of

    the

    Indu

    stra

    lR

    evol

    utio

    n, a

    nd th

    e m

    id-n

    inet

    eent

    h ce

    ntur

    y, w

    hen

    pow

    ered

    mac

    hi-

    i f t I ¡ .~- :'r l¡ , ¡

    Thi

    nkin

    g ab

    out g

    row

    th7

    ery,

    the

    railr

    oad,

    the

    stea

    msh

    ip, a

    nd th

    e el

    ectr

    omag

    netic

    tele

    grap

    hha

    d be

    gun

    to c

    reat

    e a

    sens

    e of

    the

    furt

    her

    poss

    ibilt

    ies

    of te

    chno

    logi

    cal

    prog

    ress

    .

    Of t

    he fe

    atur

    es w

    hich

    cha

    ract

    erie

    this

    pro

    gres

    sive

    eco

    nom

    ical

    mov

    emen

    t of

    civi

    lzéd

    nat

    ions

    , tha

    t whi

    ch f

    irst

    exc

    ites

    atte

    ntio

    n, th

    roug

    h its

    intim

    ate

    conn

    exio

    n w

    ith th

    e ph

    enom

    ena

    of P

    rodu

    ctio

    n, is

    the

    perp

    etua

    l, an

    d so

    far

    as

    human föresight can extend, the urited, growth of man's power over

    nature. (p. 696)

    Mi's

    vie

    w o

    f th

    e m

    atte

    r is

    am

    ple

    and

    spac

    ious

    , and

    it h

    as ta

    ken

    late

    rec

    onom

    ists

    som

    e tim

    e to

    reg

    ain

    his

    swee

    ping

    vie

    w, i

    f, in

    deed

    , the

    yha

    ve,

    Impr

    ovem

    ent m

    ust b

    e un

    ders

    tood

    . . .

    in a

    wid

    e se

    nse,

    incl

    udin

    g no

    t onl

    yne

    w in

    dust

    rial

    inve

    ntio

    ns, o

    r an

    ext

    ende

    d us

    e of

    thos

    e al

    read

    y kn

    own,

    but

    impr

    ovem

    ents

    in in

    stitu

    tions

    , edu

    catio

    n, o

    pini

    ons

    and

    hum

    an'a

    ffai

    rs g

    ener

    -al

    ly, p

    rovi

    ded

    they

    tend

    , as

    alm

    ost a

    ll im

    prov

    emen

    ts d

    o, to

    giv

    e ne

    w m

    otiv

    esor

    new

    fac

    iltie

    s to

    pro

    duct

    ion.

    (p.

    192

    )

    Mil,

    like

    his

    pre

    dece

    ssor

    s, la

    id g

    reat

    str

    ess

    on th

    e in

    stitu

    tiona

    l ar-

    rang

    emen

    ts a

    nd p

    ublic

    pol

    icie

    s of

    nat

    iona

    l eco

    nom

    ies.

    He

    was

    par

    ticu-

    larl

    y co

    ncer

    ned

    with

    fou

    r m

    atte

    rs: t

    he s

    ecun

    ty o

    f pr

    oper

    ty a

    s a

    cond

    i-tio

    n of

    sav

    ing

    and

    inve

    stm

    ent;

    the

    capa

    city

    of p

    eopl

    e fo

    r ef

    fect

    ive

    coop

    erat

    ion

    as a

    bas

    is f

    or th

    e co

    nduc

    t of

    indu

    str

    on a

    larg

    e sc

    ale;

    the

    prop

    er p

    nnci

    ples

    of

    taxa

    tion

    - to

    mak

    e ta

    xes

    as li

    ttle

    arbi

    trar

    y, b

    urde

    n-so

    me,

    and

    dis

    tort

    onal

    as

    poss

    ible

    - a

    nd fi

    nally

    , the

    pro

    per

    exte

    nt a

    ndlim

    its o

    f th

    e pn

    ncip

    le o

    f la

    isse

    z-fa

    ire.

    As

    to th

    e la

    st, M

    ill f

    elt t

    om. H

    e m

    aint

    aine

    d th

    e co

    mm

    on c

    onvi

    ctio

    nof

    pol

    itica

    l eco

    nom

    ists

    fro

    m H

    ume

    and

    Smith

    for

    war

    d th

    at in

    divi

    du-

    als

    shou

    ld e

    njoy

    the

    grea

    test

    pos

    sibl

    e sc

    ope

    to e

    ngag

    e in

    trad

    e an

    d to

    cont

    ract

    free

    ly w

    ith o

    ne a

    noth

    er. Y

    et h

    e in

    sist

    ed th

    at th

    is p

    nnci

    ple

    was

    itse

    lf li

    mite

    d in

    ext

    ent a

    nd a

    dmitt

    ed o

    f ex

    cept

    ions

    . He

    trea

    ted

    the

    subj

    ect a

    t len

    gth;

    but

    in a

    n es

    say

    on g

    row

    th, f

    our

    inst

    ance

    s of

    des

    ir-

    able

    pub

    lic a

    ctiv

    ity o

    r in

    terv

    entio

    n st

    and

    out:

    The

    pro

    tect

    ion

    of th

    ose

    kind

    s' o

    f goo

    ds th

    at b

    elon

    g to

    peo

    ple

    inco

    mm

    on b

    ut a

    re u

    sed

    by a

    ll in

    divi

    dual

    ly -

    the

    envi

    ronm

    ent.

    The

    pro

    visi

    on o

    f go

    ods

    or th

    e su

    ppor

    t of

    serv

    ces

    who

    se s

    ocia

    l utii

    tyex

    ceed

    s th

    eir

    priv

    ate

    - ed

    ucat

    ion

    and

    scie

    ntif

    ic r

    esea

    rch

    (bes

    ides

    light

    hous

    es a

    nd b

    uoys

    ).T

    he r

    egul

    atio

    n of

    act

    iviti

    es th

    at c

    an o

    nly

    be d

    one

    by "

    dele

    gate

    dag

    ency

    " -

    for

    exam

    ple,

    by

    join

    t sto

    ck c

    ompa

    nies

    - a

    nd th

    e re

    gula

    -tio

    n or

    pub

    lic p

    rovi

    sion

    of

    serv

    ces

    that

    are

    nat

    ural

    and

    pra

    ctic

    alm

    onop

    olie

    s- g

    as a

    nd w

    ater

    com

    pani

    es, r

    ailr

    oads

    , can

    als.

    Mor

    e ge

    nera

    lly, t

    he p

    rovi

    sion

    of

    such

    fac

    iitie

    s, im

    port

    ant t

    o th

    epu

    blic

    inte

    rest

    , tha

    t pri

    vate

    indi

    vidu

    als

    mig

    ht p

    rovi

    de, b

    ut w

    ilnot because, "in the particular circumstances of a given age or

  • 8T

    hink

    ing

    abou

    t gro

    wth

    nation," the public is either "too poor to command

    the

    nece

    ssar

    yre

    sour

    ces,

    or

    too

    litte

    adv

    ance

    d in

    inte

    llgen

    ce to

    app

    reci

    te th

    een

    ds, o

    r no

    t suf

    fici

    ently

    pra

    ctic

    ed in

    join

    t act

    ion

    to b

    e ca

    pabl

    e of

    the

    mea

    ns"

    (p. 9

    78).

    No

    one

    can

    read

    , or

    rere

    ad, M

    i with

    out f

    eelin

    g ho

    w f

    ar h

    e an

    d th

    eot

    her

    clas

    sica

    l eco

    nom

    ists

    had

    ant

    icip

    ated

    con

    tem

    pora

    ry w

    ork,

    how

    muc

    h w

    e m

    ay le

    arn

    from

    them

    , and

    als

    o. h

    ow m

    uch

    we

    had

    forg

    otte

    ndu

    ring

    the

    cent

    ury-

    long

    hia

    tus

    whe

    n gr

    owth

    stu

    dies

    wer

    e ne

    glec

    ted.

    ., , ~. f

    II. G

    row

    th a

    nd e

    cono

    mic

    s du

    ring

    the

    hiat

    us

    One

    of

    the

    stro

    ng im

    pres

    sion

    s on

    e ta

    kes

    from

    Mi i

    s hi

    s am

    biva

    lenc

    eab

    out t

    he b

    alan

    ce o

    f gr

    owth

    for

    ces.

    He

    sens

    ed th

    at p

    opul

    atio

    n gr

    owth

    was

    beg

    inni

    ng to

    be

    limte

    d, b

    ut h

    e fe

    ared

    the

    stre

    ngth

    of

    the

    hum

    anca

    paci

    ty a

    nd d

    rive

    to m

    ultip

    ly, H

    e pe

    rcei

    ved

    the

    poss

    ibilt

    ies

    of h

    u-m

    an k

    id's

    gro

    win

    g m

    aste

    ry o

    ver

    natu

    re a

    nd o

    f th

    e cu

    mul

    ativ

    e ad

    -va

    nce

    of th

    e in

    dust

    ral a

    rts,

    but

    he

    was

    uns

    ure

    of th

    eir

    pace

    and

    cont

    inui

    ty. T

    he r

    esul

    t was

    his

    vis

    ion

    of a

    rac

    e be

    twee

    n po

    pula

    tion

    and

    impr

    ovem

    ent w

    hose

    win

    ner

    was

    unc

    erta

    in.

    Thi

    s am

    biva

    lent

    attt

    ude

    grad

    ualy

    dis

    appe

    ared

    as

    the

    last

    cen

    tury

    wore on. In Britain,

    in th

    e U

    nite

    d St

    ates

    , and

    in a

    gra

    dual

    ly w

    iden

    ing

    sphe

    re in

    Eur

    ope

    inco

    mes

    ros

    e fr

    om d

    ecad

    e to

    dec

    ade,

    Pow

    er a

    ndm

    achi

    nery

    app

    lied

    to in

    dust

    r in

    crea

    sed

    prod

    uctiv

    ity in

    agr

    cultu

    re a

    sw

    ell a

    s m

    anuf

    actu

    ring

    . App

    lied

    to tr

    ansp

    orta

    tion,

    it o

    penè

    d ne

    wla

    nds

    and

    brou

    ght f

    ood

    and

    raw

    mat

    eria

    ls c

    heap

    ly to

    mor

    e po

    pulo

    usco

    untr

    es, T

    he p

    opul

    atio

    n re

    spon

    se b

    ecam

    e w

    eake

    r w

    hile

    tech

    nolo

    gi-

    cal advance continued at a rapid pace. Even the dismal science

    lear

    ned

    to s

    mile

    ; it a

    bsor

    bed

    the

    cent

    ury'

    s w

    ider

    fai

    th in

    unb

    ound

    edPr

    ogre

    ss,

    Yet

    the

    plac

    e of

    gro

    wth

    in th

    e st

    udie

    s an

    d w

    ritig

    s of

    eco

    nom

    ists

    did not expand. Quite the contrary! Perhaps because economic

    grow

    th h

    ad b

    ecom

    e ab

    sorb

    ed in

    to a

    mor

    e ge

    nera

    l vis

    ion

    of h

    uman

    prog

    ress

    , it w

    as n

    O lo

    nger

    see

    n as

    a p

    robl

    em. O

    r pe

    rhap

    s it

    was

    disp

    lace

    d by

    oth

    er p

    ress

    ing

    conc

    erns

    . Hig

    her

    inco

    mes

    , mor

    e w

    ide-

    spre

    ad e

    duca

    tion,

    and

    the

    exte

    nsio

    n of

    suf

    frag

    e -

    all c

    onco

    mita

    nts

    ofec

    onom

    ic g

    row

    th it

    self

    - m

    ade

    wor

    kig

    peop

    le a

    str

    onge

    r po

    litic

    alfo

    rce.

    Cor

    resp

    ondi

    ngly

    , the

    cla

    ims

    of la

    bor

    and,

    mor

    e ge

    nera

    lly, t

    hequ

    estio

    n of

    inco

    me

    dist

    rbut

    ion

    beca

    me

    mor

    e ur

    gent

    issu

    es. O

    r pe

    r-ha

    ps e

    cono

    mis

    ts w

    ere

    sedu

    ced

    by th

    e lo

    gica

    l coh

    eren

    ce o

    f the

    neo

    clas

    -si

    cal t

    heor

    y of

    rel

    ativ

    e pr

    ices

    and

    res

    ourc

    e al

    loca

    tion,

    whi

    ch c

    ame

    tose

    em s

    uch

    a so

    lid c

    onst

    rctio

    n on

    its

    stat

    ic f

    ound

    atio

    ns. T

    he th

    eory

    trea

    ted

    a na

    tion'

    s in

    stitu

    tions

    , its

    pop

    ulat

    ion,

    and

    its

    tech

    nolo

    gy, t

    he

    Thi

    nkin

    g ab

    out g

    row

    th9

    cent

    ral e

    lem

    ents

    of

    the

    grow

    Üi p

    roce

    ss, a

    s au

    tono

    mou

    s da

    ta. T

    hey

    wer

    e vi

    ewed

    as

    the

    cOns

    trai

    nts

    and

    cond

    ition

    s to

    whi

    ch p

    rices

    and

    reso

    urce

    allo

    catio

    n ad

    just

    ed. B

    ut th

    e ca

    uses

    of

    thei

    r ch

    ange

    s w

    ere

    not

    subj

    ects

    for

    , eco

    nom

    ists

    to in

    vest

    igat

    e, a

    nd th

    eir

    impl

    icat

    ions

    wer

    em

    ainl

    ~ n

    egle

    cted

    . Neo

    clas

    sica

    l the

    ory,

    ther

    efor

    e, im

    pose

    d bo

    unda

    ries

    On

    econ

    omic

    s, a

    t lea

    st O

    n th

    e sc

    ienc

    e th

    at e

    cono

    mis

    ts h

    ad th

    e am

    bi-

    tion

    to b

    uild

    . It l

    eft g

    row

    th o

    utsi

    de it

    s bo

    rder

    s, E

    ven

    the

    subj

    ect o

    fsc

    ale,

    the

    divi

    sion

    of l

    abor

    and

    incr

    easi

    ng r

    etur

    ns -

    Ada

    m S

    mith

    'sba

    sic

    insi

    ght -

    cam

    e to

    be

    view

    ed a

    s ju

    st a

    pro

    blem

    for

    the

    theo

    ry o

    fth

    e eq

    uilb

    rium

    of

    rela

    tive

    pric

    es, A

    nd A

    lyn

    You

    ng h

    ad to

    wrt

    e a

    fam

    ous

    essa

    y (1

    928)

    to r

    emid

    eco

    nom

    ists

    that

    it w

    as s

    omet

    hig

    mor

    e, p

    art o

    f an

    inte

    ract

    ive

    and

    cum

    ulat

    ive

    proc

    ess

    invo

    lvig

    cap

    ital

    accu

    mul

    atio

    n, p

    rodu

    ctiv

    ity g

    row

    th, r

    isin

    g in

    com

    es, a

    nd th

    e ex

    tens

    ion

    of m

    arke

    ts, a

    n el

    emen

    t in

    econ

    omic

    gro

    wth

    as

    wel

    l as

    a pr

    oble

    m fo

    rst

    atic

    theo

    ry. f

    inal

    ly, w

    hate

    ver

    impu

    lse

    ther

    e w

    as to

    bre

    ak o

    ut o

    f th

    ebo

    rder

    s of

    sta

    tic th

    eory

    was

    abs

    orbe

    d by

    the

    trou

    bles

    that

    eng

    ulfe

    dthe industralworId after 1914, Two great wars, the postwar hyperin-

    £lat

    ions

    , an

    d th

    e G

    reat

    Dep

    ress

    ion

    prov

    ided

    a q

    uart

    er-c

    entu

    ry o

    f dis

    -tr

    actio

    ns fo

    r th

    ose

    econ

    omis

    ts w

    ho w

    ere

    mid

    ed to

    'stu

    dy s

    omet

    hing

    othe

    r th

    an th

    e co

    nditi

    ons

    of g

    ener

    al e

    quilb

    rium

    .T

    o al

    l thi

    s Jo

    seph

    Sch

    umpe

    ter

    was

    an

    hono

    rabl

    e an

    d no

    tabl

    e ex

    cep-

    tion, His early classic, The Theory of Economic Development (1911), ar-

    gued

    that

    in th

    e ab

    senc

    e of

    pop

    ulat

    ion

    grow

    th a

    nd te

    chno

    logi

    cal a

    d-, v

    ance

    nei

    ther

    a p

    ositi

    ve in

    tere

    st r

    ate

    nor

    net p

    rofi

    t wou

    ld p

    ersi

    st.

    Pro

    fit is

    , ind

    eed,

    the

    rew

    ard

    for

    the

    succ

    essf

    ul in

    trod

    uctio

    n of

    new

    met

    hods

    and

    pro

    duct

    s. If

    ' eco

    nom

    ic a

    ctiv

    ity fo

    llow

    ed a

    n un

    ceas

    ing

    repe

    titiv

    e ro

    und,

    ther

    e w

    ould

    be

    nO f

    unct

    ion

    for

    entr

    epre

    neur

    s an

    dnO

    occ

    asio

    n fo

    r pr

    ofit,

    And

    inte

    rest

    wou

    ld d

    isap

    pear

    as

    cont

    inue

    dac

    cum

    ulat

    ion

    embo

    dyin

    g an

    unc

    hang

    ig te

    chno

    logy

    dro

    ve th

    e m

    ar-

    gial

    pro

    duct

    of

    capi

    tal t

    o ze

    ro. i

    Schu

    mpe

    ter's

    arg

    umen

    ts w

    ere

    inte

    nded

    fir

    st o

    f al

    l to

    enla

    rge

    the

    foun

    datio

    ns o

    f th

    e ne

    ocla

    ssic

    al th

    eory

    of

    fact

    or p

    rice

    s. A

    s a

    posi

    tive

    cont

    rbut

    ion

    to th

    e ec

    onom

    ics

    of g

    row

    th, t

    hey

    repe

    ated

    and

    re-

    info

    rced

    the

    olde

    r vi

    ews

    abou

    t the

    , ten

    denc

    y of

    gro

    ss p

    rofi

    t '(n

    tere

    stpl

    us n

    et p

    rofi

    t) to

    a m

    inim

    UI

    and

    the

    depe

    nden

    ce o

    f ne

    t cap

    ital

    accu

    mul

    atio

    n an

    d th

    e re

    turn

    to c

    apita

    l On

    the

    rate

    of i

    mpr

    ovem

    ent.

    Schu

    mpe

    ter

    wen

    t fur

    ther

    . He

    dist

    igui

    shed

    bet

    wee

    n "i

    nven

    tion,

    "or

    the

    adva

    nce

    of k

    now

    ledg

    e us

    eful

    in p

    rodu

    ctio

    n, a

    nd "

    inno

    vatio

    n,"

    which was the exploitation of such

    know

    ledg

    e, th

    e ac

    tual

    intr

    oduc

    -tio

    n of

    new

    pro

    duct

    s or

    new

    met

    hods

    in c

    omm

    erci

    al o

    pera

    tions

    . The

    olde

    r ec

    onom

    ists

    had

    trea

    ted

    both

    as

    auto

    nom

    ous

    deve

    lopm

    ents

    , but

    Sch

    umpe

    ter

    argu

    ed th

    at in

    ovat

    ion

    was

    an

    econ

    omic

    act

    ivity

    , the

    pecu

    iar

    func

    tion

    of e

    ntre

    pren

    eurs

    . His

    vie

    w im

    plie

    d th

    at m

    arke

    t com

    -..

  • 10T

    hink

    ing

    abou

    t gro

    wth

    petit

    ion

    incl

    uded

    riv

    alr

    in th

    e in

    tfod

    uctio

    n of

    new

    pro

    duct

    s an

    dpr

    oces

    ses.

    Rel

    ativ

    e pr

    ices

    , the

    refo

    re, w

    ere

    in f

    lux,

    con

    stan

    tly d

    is-

    turb

    ed b

    y th

    e sa

    me

    mar

    ket c

    ompe

    titio

    n th

    at in

    the

    rece

    ived

    theo

    ryw

    as th

    ough

    t to

    esta

    blis

    h th

    eir

    equi

    lbri

    um.

    Schu

    mpe

    ter

    taug

    ht th

    at in

    nova

    tion

    was

    the

    cent

    ral e

    lem

    ent i

    n th

    eec

    onom

    ics

    of g

    rQw

    th. A

    s su

    ch, h

    e st

    ress

    ed th

    e re

    quire

    men

    ts fo

    r su

    c-ce

    ssfu

    l inn

    ovat

    ion:

    ope

    n m

    arke

    ts to

    per

    mt.

    the

    appe

    aran

    ce o

    f "n

    ewm

    en"

    and

    "new

    fir

    ms,

    " ac

    cess

    to c

    redi

    t, an

    d su

    ffci

    ently

    sta

    ble

    mac

    ro-

    econ

    omic

    con

    ditio

    ns s

    o th

    at b

    usin

    essm

    en c

    ould

    gau

    ge th

    eir

    mar

    kets

    and

    thei

    r pr

    ices

    and

    cos

    ts w

    ithou

    t an

    undu

    e se

    nse

    of r

    isk.

    Sch

    umpe

    ter

    saw business cycles, particularly the longer waves of accelerated

    grow

    th a

    nd r

    etar

    datio

    n an

    d th

    e fin

    anci

    al d

    isto

    rtio

    ns th

    ey b

    roug

    ht in

    thei

    r tr

    ain,

    as

    part

    of

    the

    inno

    vato

    ry p

    roce

    ss, H

    e w

    as a

    mon

    g th

    e fi

    rst t

    osu

    gges

    t tha

    t the

    unc

    erta

    intie

    s ac

    com

    pany

    ig in

    flat

    ion

    and

    othe

    r fi

    nan-

    cial

    dis

    turb

    ance

    s co

    uld

    pose

    a la

    stig

    obs

    tacl

    e to

    inno

    vatio

    n an

    d pr

    o-du

    ctiv

    ity g

    row

    th -

    a le

    sson

    for

    the

    cont

    empo

    rary

    sce

    ne a

    nd s

    easo

    n.Sc

    hum

    pete

    r w

    as w

    idel

    y ad

    med

    for

    his

    bri

    ance

    and

    long

    neg

    lect

    edfo

    r hi

    s or

    igin

    ality

    . His

    inno

    vativ

    e th

    eori

    es w

    ere

    not e

    asily

    acc

    omm

    o-dated within the domiant neoclassical modeL.

    Whe

    n in

    tere

    st in

    eco

    nom

    ic g

    row

    th fi

    naly

    rev

    ived

    afte

    r W

    orld

    War

    II, e

    cono

    mis

    ts s

    tudi

    ed S

    chum

    pete

    r ag

    ain.

    The

    y w

    ere

    atta

    cted

    esp

    e-cially by the theses of his later work, Capitalism, Socialism, and Democ-

    racy

    (19

    42).

    Her

    e he

    enl

    arge

    d on

    his

    ear

    lier

    idea

    s ab

    out t

    he r

    ole

    ofpr

    ofits

    , He

    now

    arg

    ued

    that

    inov

    atio

    n re

    sted

    not

    onl

    y on

    the

    lure

    of

    high

    but

    com

    petit

    ive

    prof

    its; o

    ften

    it a

    lso

    conf

    erre

    d m

    onop

    oly

    pow

    eran

    d its

    con

    com

    itant

    mon

    opol

    y pr

    ofits

    , Al t

    hese

    he

    view

    ed a

    s ne

    ces-

    sary

    , the

    refo

    re u

    sefu

    l, in

    duce

    men

    ts a

    nd r

    ewar

    ds -

    an

    acce

    ptab

    lepr

    ice

    for

    the

    bene

    fits

    of

    inno

    vatio

    n an

    d gr

    owth

    . Mor

    eove

    r, th

    ese

    pries were transient, being diluted and eventually eliinated by the

    imita

    tive

    inro

    ads

    and

    furt

    her

    inno

    vatio

    ns o

    f ri

    val e

    ntre

    pren

    eurs

    .Some degree of monopoly power,

    ther

    efor

    e, w

    as a

    reg

    ular

    feat

    ure

    of a

    progressive economy - constantly lited, but also constantly re-

    new

    ed b

    y th

    e in

    nova

    tive

    activ

    ity o

    f ent

    repr

    eneu

    rs.

    Schu

    mpe

    ter

    now

    als

    o ab

    ando

    ned

    the

    shar

    p di

    stin

    ctio

    n th

    at h

    isea

    rly w

    ritin

    gs h

    ad d

    raw

    n be

    twee

    n in

    vent

    ion,

    the

    prod

    uct o

    f act

    iviti

    esou

    tsid

    e th

    e ec

    onom

    ic s

    yste

    m, a

    nd in

    nova

    tion,

    whi

    ch w

    as r

    egar

    ded

    asbu

    sine

    ss in

    vest

    men

    t of a

    bol

    d an

    d ris

    ky s

    ort.

    Rec

    ogni

    zing

    that

    larg

    ean

    d lo

    ng-l

    ived

    cor

    pora

    tions

    had

    dis

    plac

    ed th

    e in

    divi

    dual

    ent

    repr

    e-ne

    ur, h

    e su

    gges

    ted

    that

    bot

    h th

    e se

    arch

    for

    new

    tech

    nolo

    gy a

    nd it

    sco

    mm

    erci

    al e

    xplo

    itatio

    n ha

    d be

    com

    e "r

    outin

    e" a

    spec

    ts o

    f bu

    sine

    ssac

    tivity

    . Eco

    nom

    ists

    ' pre

    sent

    mod

    els

    of te

    chno

    logi

    cal p

    rogr

    ess

    inco

    r-po

    rate

    ver

    sion

    s of

    the

    sam

    e id

    eas;

    but

    that

    rev

    ival

    of

    Schu

    mpe

    teri

    anec

    onom

    ics

    rem

    aine

    d fo

    r th

    e fu

    tue.

    Whi

    le th

    eir

    atte

    ntio

    n w

    as d

    irec

    ted

    Thi

    nkin

    g ab

    out g

    row

    th11

    else

    whe

    re, e

    cono

    mis

    ts' v

    iew

    s ,a

    bout

    eco

    nom

    ic g

    row

    th r

    emai

    ned

    un-

    form

    ed. G

    uide

    d by

    neo

    clas

    sica

    l the

    ory,

    they

    trea

    ted

    tech

    nolo

    gica

    l ad-

    vanc

    e -

    as in

    depe

    nden

    t of

    econ

    omic

    ince

    ntiv

    es a

    nd s

    aw o

    nly

    capi

    tal

    accu

    mul

    atio

    n as

    a s

    ourc

    e of

    pro

    duct

    ivity

    gro

    wth

    res

    pons

    ive

    to e

    co-

    nom

    ic c

    ause

    s,i

    III.

    The

    pos

    twar

    rev

    ival

    of

    inte

    rest

    in g

    row

    th a

    nd th

    ere

    spon

    se o

    f ec

    onom

    ics

    Tha

    t was

    how

    mat

    ters

    sto

    od a

    s W

    orld

    War

    II c

    ame

    to a

    n en

    d, In

    tere

    st,

    how

    ever

    , qui

    ckly

    shi

    fted

    . Gro

    wth

    bec

    ame

    a pr

    imar

    y go

    al o

    f na

    tiona

    lpo

    licy

    and

    cons

    eque

    ntly

    an

    abso

    rbin

    g su

    bjec

    t of

    stud

    y by

    eco

    nom

    ists

    .T

    here

    wer

    e co

    nsid

    erat

    ions

    of

    natio

    nal s

    ecur

    ity a

    nd r

    ival

    ry, o

    f th

    eco

    nque

    st o

    f po

    vert

    y, a

    nd o

    f ad

    vanc

    es to

    war

    d pr

    ospe

    rity

    , and

    ther

    ew

    ere

    pres

    sure

    s fo

    r gr

    owth

    to a

    chie

    ve o

    ther

    urg

    ent s

    ocia

    l obj

    ectiv

    es.

    Peop

    le, i

    nclu

    ding

    pol

    itici

    ans,

    rea

    lized

    that

    the

    outc

    ome

    of th

    e w

    arha

    d be

    en d

    eter

    min

    ed b

    y G

    NP.

    Mor

    e th

    an e

    ver

    befo

    re, n

    atio

    ns v

    iew

    edth

    eir

    secu

    rity

    and

    pow

    er a

    s re

    stig

    on

    an e

    cono

    mic

    bas

    e. T

    o en

    sure

    thei

    r in

    depe

    nden

    ce a

    nd s

    afet

    y, th

    ey' c

    oncl

    uded

    they

    mus

    t gro

    w; i

    fah

    ead,

    sta

    y ah

    ead;

    if b

    ehid

    ~ ca

    tch

    up,

    Eur

    opea

    ns b

    ecam

    e aw

    are

    that

    they

    had

    lost

    gro

    und

    to th

    e U

    nite

    dSt

    ates

    in le

    vels

    of

    livig

    not

    onl

    y du

    rig

    the

    war

    but

    sin

    ce 1

    913

    and

    even

    ear

    lier.

    The

    y co

    rrec

    tly f

    elt t

    hat t

    heir

    leve

    ls o

    f sc

    ient

    ific

    and

    gen

    -er

    al e

    duca

    tion,

    thei

    r ex

    peri

    ence

    with

    mod

    ern

    com

    mer

    ce, i

    ndus

    tr,

    and

    fina

    nce,

    and

    thei

    r po

    litic

    al in

    stitu

    tions

    sho

    uld

    be a

    ble

    to s

    uppo

    rt a

    muc

    h hi

    gher

    rel

    ativ

    e st

    atus

    ,Si

    mila

    rly,

    the

    new

    ly in

    depe

    nden

    t cou

    ntre

    s, th

    e fo

    rmer

    col

    onie

    s,sa

    w e

    cono

    mic

    gro

    wth

    not

    onl

    y as

    the

    mea

    ns o

    f ri

    sing

    fro

    m p

    over

    tybu

    t as

    a ne

    cess

    ary

    cond

    ition

    for

    cons

    olid

    atin

    g th

    eir

    new

    pol

    itica

    lre

    gies

    .O

    n an

    othe

    r le

    vel,

    the

    riva

    lr b

    etw

    èen

    the

    US?

    R a

    nd th

    e U

    nite

    dSt

    ates

    mad

    e ea

    ch c

    ount

    r an

    xiou

    s to

    pro

    ve th

    at it

    s sy

    stem

    was

    cap

    a-bl

    e of

    p'ad

    ucin

    g ev

    er h

    ighe

    r m

    ater

    ial c

    ondi

    tions

    and

    was

    ther

    efor

    ew

    orth

    y of

    em

    ulat

    ion,

    fre

    ndsh

    ip, o

    r ev

    en a

    llanc

    e.In

    tern

    al p

    oliti

    cal f

    orce

    s al

    so p

    ress

    ed f

    or g

    row

    th. T

    he e

    nlar

    gem

    ent o

    fthe democratic suffrage in the industralied countres, a stronger

    egal

    itaria

    n se

    ntim

    ent,

    and

    peop

    le's

    hei

    ghte

    ned

    appr

    ecia

    tion

    of th

    eri

    sks

    and

    cost

    s of

    adv

    ance

    d ca

    pita

    list l

    ife

    drov

    e co

    untr

    es to

    dev

    elop

    syst

    ems

    of p

    rote

    ctio

    n an

    d be

    nefi

    t - th

    e w

    elfa

    re s

    tate

    . It w

    as q

    uick

    lyap

    prec

    iate

    d th

    at it

    wou

    ld b

    e ea

    sier

    to p

    ay f

    or th

    ese

    syst

    ems

    from

    risi

    ng in

    com

    es th

    an f

    rom

    red

    istr

    butiv

    e ta

    xes.

    The

    pol

    itica

    l ten

    sion

    san

    d so

    cial

    con

    flict

    inhe

    rent

    in r

    edis

    trbu

    tion

    wou

    ld b

    e m

    itiga

    ted

    bygr

    owth

    .

  • 12T

    hink

    ing

    abou

    t gro

    wth

    Eco

    nom

    ists

    res

    pond

    ed to

    the

    chal

    leng

    es o

    f new

    pub

    lic p

    robl

    ems

    and

    polit

    ical

    inte

    rest

    by

    open

    ing

    thre

    ee la

    rge

    bran

    ches

    of

    rese

    arch

    .O

    ne w

    as th

    e st

    udy

    of s

    ecul

    ar d

    evel

    opm

    ent i

    n th

    ose

    coun

    tres

    that

    wer

    e al

    read

    y fa

    r ad

    vanc

    ed o

    n th

    e pa

    th o

    f in

    dust

    ralia

    tion

    and

    wer

    eca

    pabl

    e of

    ope

    ratig

    at o

    r ne

    ar th

    e fr

    ontie

    rs o

    f mod

    em te

    chno

    logy

    ,A

    noth

    er w

    as th

    e st

    udy

    of d

    evel

    opm

    ent i

    n po

    or c

    ount

    res

    sti e

    mer

    g-ing from a preindustral condition, the countres in which the basic

    inst

    itutio

    ns a

    nd c

    apab

    iltie

    s fo

    r ex

    ploi

    tig c

    onte

    mpo

    rary

    tech

    nolo

    gyre

    mai

    ned

    to b

    e es

    tabl

    ishe

    d. A

    thir

    d co

    ncer

    ned

    the

    com

    mun

    ist c

    oun-

    tres

    , whe

    re a

    new

    set

    of i

    nstit

    utio

    ns b

    ased

    on

    the

    stat

    e,ow

    ners

    hip

    ofre

    sour

    ces

    and

    a sy

    stem

    of

    cent

    ral p

    lann

    ig a

    nd c

    ontr

    ol h

    ad b

    een

    esta

    blis

    hed.

    Thi

    s es

    say

    deal

    s w

    ith th

    e fi

    rst o

    f th

    ese,

    gro

    wth

    in th

    epr

    esen

    tly in

    dust

    raliz

    ed c

    ount

    res

    who

    se e

    cono

    mie

    s de

    pend

    mai

    nly

    on p

    rivat

    e en

    terp

    rise

    and

    mar

    ket g

    udan

    ce.

    The

    gro

    wth

    stu

    dies

    fell

    Ilto

    two

    divi

    sion

    s. T

    he fi

    rst w

    as p

    rinci

    pally

    hist

    oric

    al a

    nd d

    escr

    iptiv

    e. 'I

    ts a

    im a

    nd, i

    ndee

    d, it

    s so

    lid a

    ccom

    plis

    h-ment was to establish the

    obse

    rvab

    le c

    hara

    cter

    istic

    s of

    gro

    wth

    on

    the

    basi

    s of

    a w

    ide

    surv

    ey o

    f ex

    peri

    ence

    ove

    r lo

    ng p

    erio

    ds a

    nd a

    cros

    s a

    cons

    ider

    able

    num

    ber

    of c

    ount

    res,

    Sim

    on K

    uzne

    ts's

    wor

    k is

    the

    grea

    texemplar of such studies, although

    in s

    ome

    resp

    ects

    Col

    in C

    lark

    was

    his

    prec

    urso

    r.K

    uzne

    ts's

    gre

    at a

    chie

    vem

    ent w

    as th

    e fo

    unda

    tion

    of th

    e m

    odem

    na-

    tiona

    l pro

    duct

    and

    nat

    iona

    l inc

    ome

    acco

    unts

    . He

    wor

    ked

    out t

    heir

    conc

    eptu

    al b

    ases

    , mad

    e th

    e ea

    rly

    estia

    tes

    for

    the

    Uni

    ted

    Stat

    es, a

    ndex

    tend

    ed th

    e U

    ,S. n

    atio

    nal p

    rodu

    ct s

    erie

    s ba

    ck to

    187

    0. H

    e en

    cour

    aged

    the

    com

    pila

    tion

    of lo

    ng-t

    erm

    sta

    tistic

    al d

    ata

    to s

    uppl

    emen

    t the

    nat

    iona

    lpr

    oduc

    t fig

    ures

    and

    ass

    embl

    ed m

    any

    of th

    em h

    imse

    lf -

    popu

    latio

    nan

    d ot

    her

    vita

    l sta

    tistic

    s, la

    bor

    forc

    e, w

    ealth

    , and

    man

    y ot

    hers

    . He

    stiu

    late

    d an

    d su

    ppor

    ted

    sim

    ilar

    effo

    rts

    in o

    ther

    cou

    ntre

    s. T

    he e

    mpi

    ri-ca

    l gen

    eral

    izat

    ions

    that

    he

    and

    his

    colla

    bora

    tors

    and

    follo

    wer

    s es

    tab-

    lishe

    d co

    mpr

    ise

    man

    y of

    the

    broa

    d fa

    cts

    tow

    ards

    an

    expl

    anat

    ion

    ofwhich much analytical work

    is d

    irec

    ted,

    A li

    st o

    f su

    ch g

    ener

    aliz

    atio

    ns,

    inco

    mpl

    ete

    but i

    lust

    rativ

    e, in

    clud

    es th

    e fo

    llow

    ig:

    The

    nse

    of

    aggr

    egat

    e an

    d pe

    r ca

    pita

    gro

    wth

    rat

    es a

    ssoc

    iate

    d w

    ith th

    eon

    set o

    f "m

    odem

    eco

    nom

    ic g

    row

    th."

    The

    dem

    ogra

    phic

    tran

    sitio

    ns fr

    om n

    sing

    to d

    eclin

    ing

    rate

    s of

    pop

    ula-

    tion

    grow

    th in

    the

    cour

    se o

    f in

    dusm

    aliz

    atio

    n.T

    he g

    radu

    al s

    prea

    d of

    mod

    ern

    grow

    th f

    rom

    Bnt

    ain

    to th

    e U

    nite

    dSt

    ates

    , Eur

    ope,

    the

    coun

    mes

    of

    Eur

    opea

    n se

    ttlem

    ent,

    and

    Japa

    n.T

    he s

    ecul

    ar a

    ccel

    erat

    ion

    of p

    rodu

    ctiv

    ity g

    row

    th; i

    n pa

    rtic

    ular

    the

    pron

    ounc

    ed a

    ccel

    erat

    ion

    follo

    win

    g W

    orld

    War

    II a

    nd th

    e re

    tard

    a-tio

    n of

    the

    last

    15

    year

    s,T

    he q

    ualif

    ied

    tend

    ency

    to c

    onve

    rgen

    ce in

    the

    prod

    uctiv

    ity g

    row

    thra

    tes

    and

    leve

    ls o

    f in

    dust

    naliz

    ed c

    ounm

    es.

    Thi

    nkin

    g ab

    out g

    row

    th13

    The

    man

    y st

    rctu

    ral c

    hang

    es a

    ssoc

    iate

    d w

    ith g

    row

    th, n

    otab

    ly th

    esh

    ifts

    in o

    utpu

    t and

    em

    ploy

    men

    t fro

    m a

    gncu

    lture

    to m

    anuf

    actu

    r-in

    g an

    d th

    en to

    the

    serv

    ces

    and

    gove

    rnm

    ent a

    nd fr

    om r

    ural

    tour

    ban

    loca

    tion.

    The

    nse

    of g

    over

    nent

    as

    an e

    cono

    mic

    age

    nt in

    pro

    duct

    ion,

    in-

    vest

    men

    t, an

    d in

    com

    e di

    smbu

    tion

    and

    as a

    reg

    ulat

    or o

    f pnv

    ate

    activ

    ity.

    The

    tend

    ency

    tow

    ards

    ret

    arda

    tion

    in th

    e ou

    tput

    and

    pro

    duct

    ivity

    grow

    th o

    f pa

    rtcu

    lar

    com

    mod

    ities

    and

    indu

    smes

    , com

    bine

    d w

    ithco

    nsta

    nt o

    r ev

    en n

    sing

    gro

    wth

    rat

    es o

    f th

    e pe

    r ca

    pita

    out

    put a

    ndpr

    oduc

    tivity

    of

    all i

    ndus

    mes

    com

    bine

    d; th

    e as

    soci

    ated

    shi

    ft in

    the

    impo

    rtan

    ce o

    f ind

    usm

    es fr

    om o

    lder

    to y

    oung

    er,

    The

    se a

    nd o

    ther

    em

    pirc

    al p

    ener

    aliz

    atio

    ns a

    re th

    e ne

    cess

    ary

    fram

    e-w

    ork

    with

    in w

    hich

    eff

    orts

    to u

    nder

    stan

    d hi

    stor

    ical

    cha

    nges

    and

    na-

    tiona

    l dif

    fere

    nces

    in g

    row

    th ta

    tes

    mus

    t pro

    ceed

    . Sin

    ce th

    eori

    es o

    fec

    onom

    ic g

    row

    th m

    ust h

    ave

    impl

    icat

    ions

    con

    sist

    ent w

    ith th

    ese

    obse

    r-va

    tions

    , the

    y ar

    e th

    e in

    disp

    ensa

    ble

    back

    grou

    nd fo

    r an

    alyt

    ical

    wor

    k.T

    his

    anal

    ytic

    al w

    ork

    is th

    e se

    cond

    div

    isio

    n of

    the

    sùbj

    ect,

    and

    it is

    the

    conc

    ern

    of th

    e re

    st o

    f thi

    s pa

    per.

    iV. T

    he p

    roxi

    mat

    e so

    urce

    s of

    gro

    wth

    The

    des

    crip

    tive

    effo

    rts

    of C

    olin

    Cla

    rk, S

    imon

    Kuz

    nets

    , and

    the

    othe

    rpi

    onee

    rs in

    the

    mea

    sure

    men

    t of

    natio

    nal i

    ncom

    e an

    d pr

    oduc

    t and

    of

    asso

    ciat

    ed d

    ata

    on la

    bor

    forc

    e an

    d ca

    pita

    l sto

    ck w

    ere

    not a

    imes

    s ex

    cur-

    sion

    s in

    to th

    e st

    atis

    tical

    cos

    mos

    , The

    y w

    ere

    guid

    ed b

    y th

    e co

    ncep

    tion

    of a

    pro

    duct

    ion

    func

    tion,

    whi

    ch is

    to s

    ay b

    y th

    e id

    ea th

    at o

    utpu

    t is

    afu

    nctio

    n of

    the

    inpu

    ts o

    f la

    bor,

    acc

    umul

    ated

    cap

    ital,

    and

    land

    and

    of

    the

    prod

    uctiv

    ity o

    f th

    ese

    fact

    or in

    puts

    . Thi

    s id

    ea h

    ad b

    een

    part

    of

    the

    outlo

    ok o

    f the

    cla

    ssic

    al e

    cono

    mis

    ts, a

    nd, a

    s w

    e ha

    ve s

    een,

    it w

    as th

    eor

    gani

    zing

    them

    e of

    Mi's

    Pri

    ncip

    les.

    The

    sam

    e fu

    ndam

    enta

    l not

    ion

    was

    take

    n ov

    er b

    y th

    e ne

    ocla

    ssic

    al e

    cono

    mis

    ts a

    nd b

    ecam

    e a

    cent

    ral

    feat

    ue o

    f the

    ir st

    atic

    mod

    els

    of p

    rice

    and

    inco

    me

    dist

    rbut

    ion,

    It w

    asth

    eref

    ore

    as n

    atur

    al fo

    r ec

    onom

    ists

    , whe

    n th

    ey r

    etur

    ned

    to th

    e ¡,

    tudy

    of g

    row

    th, a

    s it

    had

    been

    for

    Mil

    him

    self

    to th

    ink

    that

    the

    "inc

    reas

    e of

    prod

    uctio

    n. .

    . is

    a re

    sult

    of th

    e in

    crea

    se o

    f th

    e (i

    nput

    s) th

    emse

    lves

    ,or

    of

    thei

    r pr

    oduc

    tiven

    ess,

    " B

    ut h

    ow m

    uch

    was

    due

    to th

    e in

    crea

    se o

    fea

    ch o

    f th

    e in

    puts

    and

    how

    muc

    h to

    that

    of

    thei

    r pr

    oduc

    tiven

    ess?

    Tha

    tw

    as a

    n ob

    viou

    s fi

    rst q

    uest

    ion.

    "G

    row

    th a

    ccou

    ntin

    g" w

    as th

    e at

    tem

    ptto

    ans

    wer

    it,

    The

    dis

    cove

    ry o

    f the

    Res

    idua

    lC

    alcu

    latio

    ns th

    at d

    ecom

    pose

    d th

    e gr

    owth

    of

    outp

    ut in

    to th

    eco

    ntri

    butio

    ns o

    f la

    bor

    inpu

    t and

    labo

    r pr

    oduc

    tivity

    had

    bee

    n m

    ade

  • 14Thinking about gro'lth

    for

    man

    y ye

    ars.

    2 T

    hey

    left

    ope

    n th

    e qu

    estio

    n, h

    ow m

    uch

    of th

    e ri

    seof

    labo

    r pr

    oduc

    tivity

    was

    attb

    utab

    le to

    the

    incr

    ease

    of

    capi

    tal p

    erw

    orke

    r. A

    ser

    ies

    of s

    tudi

    es p

    ublis

    hed

    over

    just

    a f

    ew y

    ears

    fet

    umed

    a su

    rpris

    ing

    answ

    er a

    nd r

    evea

    led

    a gr

    eat g

    ap in

    eco

    nom

    ists

    ' und

    er-

    stan

    ding

    . The

    stu

    dies

    that

    fir

    st c

    augh

    t the

    atte

    ntio

    n an

    d ro

    used

    the

    inte

    rest

    of e

    cono

    mis

    ts w

    ere

    by th

    e pr

    esen

    t writ

    er (

    1956

    ), J

    ohn

    Ken

    -dr

    ick

    (195

    6, 1

    961)

    and

    Rob

    ert S

    olow

    (19

    57).

    3T

    he c

    alcu

    latio

    ns p

    roce

    eded

    from

    the

    assu

    mpt

    ion

    that

    the

    wag

    es o

    fla

    bor

    and

    the

    retu

    rns

    to c

    apita

    l als

    o re

    pres

    ente

    d th

    e ad

    ditio

    nal p

    rod-

    uct f

    rom

    incr

    emen

    ts o

    f th

    ese

    fact

    or in

    puts

    . Thi

    s as

    sum

    ptio

    n pe

    rmit-

    ted the deduction that the growth rate of output could be decom-

    pose

    d in

    to a

    por

    tion

    cont

    rbut

    ed b

    y "t

    otal

    fact

    or in

    put,"

    whi

    ch w

    asth

    e jo

    int c

    ontr

    butio

    n of

    labo

    r an

    d ca

    pita

    l (in

    clud

    ig la

    nd),

    and

    apo

    rtio

    n co

    ntrb

    uted

    by

    "tot

    al fa

    ctor

    pro

    duct

    ivity

    ," T

    he fi

    rst w

    as th

    esu

    m o

    f th

    e gr

    owth

    rat

    es o

    f th

    e fa

    ctor

    inpu

    ts, e

    ach

    wei

    ghte

    d by

    the

    shar

    e of

    its

    earn

    ings

    in n

    atio

    nal i

    ncom

    e. T

    he s

    econ

    d w

    as th

    e di

    ffer-

    ence

    bet

    wee

    n th

    e gr

    owth

    rat

    e of

    out

    put a

    nd th

    at o

    f tot

    al fa

    ctor

    inpu

    t. Si

    nce

    it ha

    d lo

    ng b

    een

    know

    n, h

    owev

    er, t

    hat t

    he g

    row

    th o

    fou

    tput

    per

    cap

    ita w

    as d

    ue a

    lmos

    t ent

    irely

    to th

    at o

    f lab

    or p

    rodu

    ctiv

    -ity

    , not

    to th

    at o

    f la

    bor

    inpu

    t per

    hea

    d, it

    was

    the

    deco

    mpo

    sitio

    n of

    labo

    r pr

    oduc

    tivity

    gro

    wth

    that

    was

    the

    mos

    t int

    eres

    ting

    mat

    ter,

    But

    .th

    e sa

    me

    assu

    mpt

    ion,

    that

    ear

    nigs

    = m

    argi

    nal p

    rodu

    ctiv

    ity, l

    ed to

    the

    conc

    lusi

    on th

    at th

    e gr

    owth

    rat

    e, o

    f lab

    or p

    rodu

    ctiv

    ity c

    ould

    be

    reso

    lved

    into

    a p

    ortio

    n co

    ntrb

    uted

    by

    the

    grow

    th r

    ate

    of th

    e ca

    pita

    l-la

    bor

    ratio

    wei

    ghte

    d by

    cap

    ital's

    inco

    me

    shar

    e an

    d a

    port

    ion

    cont

    rb-

    uted

    by

    tota

    l fac

    tor

    prod

    uctiv

    ity,

    Alth

    ough

    the

    seve

    ral e

    arly

    inve

    stig

    ator

    s us

    ed s

    omew

    hat d

    iffe

    rent

    data and studied somewhat different

    peri

    ods,

    they

    rea

    ched

    iden

    tical

    qual

    itativ

    e co

    nclu

    sion

    s, O

    nly

    a sm

    all f

    ract

    ion

    of U

    ,S. p

    er c

    apita

    grow

    th o

    ver

    man

    y de

    cade

    s co

    uld

    be a

    ttbut

    ed to

    tota

    l inp

    ut g

    row

    thpe

    r ca

    pita

    . Onl

    y a

    smal

    l fra

    ctio

    n of

    labo

    r pr

    oduc

    tivity

    gro

    wth

    cou

    ldbe

    attr

    bute

    d to

    gro

    wth

    of c

    apita

    l per

    wor

    ker

    or p

    er m

    an h

    our.

    An

    over

    whe

    lmin

    gly

    larg

    e fr

    actio

    n (a

    ppro

    xim

    atel

    y 90

    per

    cent

    ) w

    as d

    ue to

    the

    adva

    nce

    of to

    tal f

    acto

    r pr

    oduc

    tivity

    , tha

    t is,

    to s

    omet

    hing

    who

    seco

    nten

    ts w

    ere

    as y

    et u

    nide

    ntif

    ied

    and

    unm

    easu

    red.

    Per

    haps

    bec

    ause

    Sol

    ow, w

    hose

    pap

    er (

    1957

    ) be

    st r

    evea

    led

    the

    un-

    derl

    ying

    theo

    ry o

    f th

    e ca

    lcul

    atio

    ns, c

    alle

    d th

    e un

    know

    n fa

    ctor

    "te

    chni

    -ca

    l cha

    nge"

    and

    sho

    wed

    that

    , in

    his

    theo

    retic

    al s

    chem

    e, it

    cor

    re-

    spon

    ded

    to s

    hifs

    in a

    n ag

    greg

    ate

    prod

    uctio

    n fu

    nctio

    n, m

    any

    econ

    o-m

    ists

    at f

    irst

    cam

    e to

    spe

    ak o

    f th

    e un

    kow

    n el

    emen

    t as

    "tec

    hnol

    ogic

    alprogress." Sti more, they tended to view the progress so represented

    as h

    avin

    g its

    sou

    rce

    in th

    e ad

    vanc

    e of

    kno

    wle

    dge.

    Non

    e of

    the

    earl

    ygr

    owth

    acc

    ount

    ants

    , how

    ever

    , vie

    wed

    the

    mat

    ter

    in th

    is li

    ght,

    and

    all

    Thinking about growth'

    15

    expl

    aine

    d ca

    refu

    lly th

    at th

    e ve

    ry la

    rge

    unm

    easu

    red

    i:om

    pone

    nt m

    ust

    incl

    ude

    the

    cont

    rbut

    ions

    of

    man

    y el

    emen

    ts b

    esid

    es n

    ew k

    now

    ledg

    e.O

    f th

    ese

    the

    mor

    e im

    port

    ant w

    ere

    the

    follo

    win

    g:

    1. G

    row

    th o

    f "h

    uman

    cap

    ital"

    by

    inve

    stm

    ent o

    f re

    sour

    ces

    in lo

    nger

    scho

    olin

    g, o

    n-th

    e-jo

    b tr

    aini

    ng, n

    utrt

    ion