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    I C R A B U L L E T I N

    Money

    Finance&

    O C T . D E C . . 2 0 0 1

    FII Flows to India:Nature and Causes

    RAJESH CHAKRABARTI*

    AbstractSince the beginning of liberalisation FII flows to India have steadily

    grown in importance. In this paper we analyse these flows and their relation-

    ship with other economic variables and arrive at the following major conclu-

    sions: (a) While the flows are highly correlated with equity returns in India,

    they are more likely to be the effect than the cause of these returns; (b) The

    FIIs do not seem to be at an informational disadvantage in India compared to

    the local investors; (c) The Asian Crisis marked a regime shift in the determi-

    nants of FII flows to India with the domestic equity returns becoming the sole

    driver of these flows since the crisis. Given the thinness of the Indian market

    and its susceptibility to manipulations, FII flows can aggravate the equity

    market bubbles, though they do not actually start them.

    I. IntroductionPortfolio investment flows from industrial countries have

    become increasingly important for developing countries in recent years.

    The Indian situation has been no different. In the year 2000-01,

    portfolio investments in India accounted for over 37 per cent of totalforeign investment in the country and 47 per cent of the current account

    deficit. The corresponding figures in the previous year were 59 per cent

    and 64 per cent respectively. A significant part of these portfolio flows

    to India comes in the form of Foreign Institutional Investors (FIIs)

    investments, mostly in equities. Ever since the opening up of the Indian

    equity markets to foreigners, FII investments have steadily grown from

    about Rs. 2,600 crore in 1993 to over Rs.11,000 crore in the first half

    of 2001 alone. Their share in total portfolio flows to India grew from

    47 per cent in 1993-94 to over 70 per cent in 1999-2000.1 The nature of

    the foreign investors decision-making process that lies at the heart ofthe portfolio flows is briefly outlined in Box 1.

    While it is generally held that portfolio flows benefit the

    economies of recipient countries2, policy-makers world-wide have been

    more than a little uneasy about such investments. Portfolio flowsoften

    * I am grateful to Anupam Gupta and Mihir Rakshit for helpful com-ments. All remaining errors and shortcomings are my sole responsibility.

    1 RBI Bulletin, October 2000.2 see Errunza (1999)

    While it is generally

    held that portfolio

    flows benefit the

    economies of

    recipient countries,

    policy-makers

    world-wide have

    been more than a

    little uneasy about

    such investments.

    Portfolio flows

    often referred to as

    hot moneyare

    notoriously volatile

    compared to otherforms of capital

    flows.

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    referred to as hot moneyare notoriously volatile compared to other

    forms of capital flows. Investors are known to pull back portfolioinvestments at the slightest hint of trouble in the host country often

    leading to disastrous consequences to its economy. They have been

    blamed for exacerbating small economic problems in a country by

    making large and concerted withdrawals at the first sign of economic

    weakness. They have also been held responsible for spreading financial

    crisescausing contagion in international financial markets. In the

    wake of the Asian crisis, prominent economists3 have, for these rea-

    Box 1: The International Portfolio Investors decision-making problem

    International portfolio flows, as opposed to foreign direct investment (FDI) flows,refer to capital flows made by individuals or investors seeking to create an interna-tionally diversified portfolio rather than to acquire management control over foreigncompanies.

    Diversifying internationally has long been known as a way to reduce the overallportfolio risk and even earn higher returns. Investors in developed countries caneffectively enhance their portfolio performance by adding foreign stocks, particularlythose from emerging market countries where stock markets have relatively low cor-relations with those in developed countries. For instance, according to Morgan StanleyCapital Internationals estimates, between 1985 and 1990, an investor holding an all-US portfolio could improve her returns by over 25 per cent by holding the MSCIworld index instead and at the same time, reduce her risk by about 2 per cent*.

    The portfolio investors problem may be thought of as deciding upon appropriatecountry weights in the portfolio so as to maximise portfolio returns subject to a riskconstraint, or in the absence of a pre-specified risk level, to reach the optimum

    portfolio, that which has the highest Sharpe ratio, S, where the Sharpe ratio is theratio of expected excess return (excess over the risk-free rate) to the dispersion(standard deviation) of the return. The problem, therefore, is as follows:

    P

    fP

    x

    rrESMax

    i

    =

    )(

    }{

    where {xi}refers to the portfolio weights for different countries and E(r

    P) and

    Prefer

    to the expected return and standard deviation of the return for the entire portfoliorespectively.

    Since the variability of the portfolio return (

    P) depends on the correlation matrix ofthe country level returns, emerging markets with their lower correlation with devel-oped markets help to reduce the overall risk of the investor. Thus, emerging marketslike India are naturally attractive to international portfolio investors as investmentdestinations. Beginning in the mid-80s several of these markets that were previouslyclosed to foreign investors, began to liberalise making portfolio investments possi-ble and portfolio investments poured into them in the 90s till the Asian crisis.

    * See Tesar (1999).

    3 See, for instance, Bhagwati (1998), Krugman (1998) and Stiglitz (1998)

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    sons, expressed doubts about the wisdom of the IMF view of promoting

    free capital mobility among countries.

    International capital flows and capital controls have emerged

    as important policy issues in the Indian context as well.4 The danger of

    Mexico-style abrupt and sudden outflows inherent with FII flows and

    their destabilising effects on equity and foreign exchange markets have

    been stressed. Some authors have argued that FII flows have, in fact,

    had no significant benefits for the economy at large.

    While these concerns are all well placed, comparatively less

    attention has been paid so far to analysing the FII flows data and

    understanding their key features. A proper understanding of the nature

    and determinants of these flows, however, is essential for a meaningful

    debate about their effects as well as for predicting the chances of their

    sudden reversals. In an attempt to address this lacuna, this paper

    undertakes an empirical analysis of FII investment flows to India.

    The broad objective of the present paper is to gain a better

    understanding of the nature and determinants of FII flows. Towards this

    end we first take a look at the FII investment flows data to bring out the

    key features of these flows. Next we study the relationship between FII

    flows and the stock market returns in India with a close look at the

    issue of causality. Finally we study the impact of other factors identified

    in the portfolio flows literature on the FII flows to India. In all of these

    investigations we make a distinction between the pre-Asian crisis period

    and the post-Asian crisis period to check if there was a regime shift in

    the relationships owing to the Asian crisis.

    The paper is arranged as follows. The next section sketches a

    brief review of the recent literature in the area. The third section

    provides an overview of the nature and sources of portfolio flows in

    India, pointing out their main characteristics. The fourth section probes

    into the possible determinants of FII flows to India. The fifth and final

    section concludes with a summary of the major findings and their

    policy implications.

    II. What we know about International Portfolio FlowsInternational portfolio flows are, as opposed to foreign direct

    investment, liquid in nature and are motivated by international portfo-

    lio diversification benefits for individual and institutional investors in

    industrial countries. They are usually undertaken by institutionalinvestors like pension funds and mutual funds. Such flows are, there-

    fore, largely determined by the performance of the stock markets of the

    host countries relative to world markets. With the opening of stock

    markets in various emerging economies to foreign investors, investors

    in industrial countries have increasingly sought to realise the potential

    for portfolio diversification that these markets present. While the

    4 See Samal (1997), Pal (1998) and Rangarajan (2000) for instance.

    While the Mexican

    crisis of 1994, the

    subsequent Tequila

    effect, and the

    widespread Asian

    crisis have had

    temporary

    dampening effects

    on international

    portfolio flows, they

    have failed to

    counter the long-

    term momentum of

    these flows.

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    Mexican crisis of 1994, the subsequent Tequila effect, and the wide-

    spread Asian crisis have had temporary dampening effects on interna-

    tional portfolio flows, they have failed to counter the long-term mo-

    mentum of these flows. Indeed, several researchers5 have found evi-

    dence of persistent home bias in the portfolios of investors in indus-

    trial countries in the nineties. This home biasthe tendency to hold

    disproportionate amounts of stock from the home countrysuggests

    substantial potential for further portfolio flows as global market

    integration increases over time.

    It is important to note that global financial integration, how-

    ever, can have two distinct and in some ways conflicting effects on this

    home bias. As more and more countriesparticularly the emerging

    marketsopen up their markets for foreign investment, investors in

    developed countries will have a greater opportunity to hold foreign

    assets. However, these flows themselves, along with greater trade flows

    will tend to cause different national markets to increasingly become

    parts of a more unified global market, reducing their diversification

    benefits. Which of these two effects will dominate is, of course, an

    empirical issue, but given the extent of the home bias it is likely that

    for quite a few years to come, FII flows would increase with global

    integration.

    In recent years, international portfolio flows to developing

    countries have received the attention of scholars in the areas of finance

    and international economics alike. In the 1990s several papers have

    explored the causes and effects of cross-border portfolio investment.

    While papers in the finance tradition have focused on the nature and

    determinants of portfolio flows from the perspective of the diversifying

    investors, those from the international macroeconomics perspective

    have focused on the recipient countrys situation and appropriate policy

    response to such flows. For the present purposes, we shall focus only on

    papers that address the issue of portfolio flows exclusively.6

    Previous research has also attempted to identify the factors

    behind these capital flows.7 The main question is whether capital flew

    into these countries primarily as a result of changes in global (largely

    US) factors or in response to events and indicators in the recipient

    countries like their credit rating and domestic stock market return. The

    question is particularly important for policy makers in order to get a

    better understanding of the reliability and stability of such flows.The answer is mixedboth global and country-specific factors seem to

    matter, with the latter being particularly important in the case of Asian

    countries and for debt flows rather than equity flows.

    5 Including French and Poterba (1991), Cooper and Kaplanis (1994) andTesar and Werner (1995a).

    6 For the related literature on international capital flows in general(comprising both FDI and portfolio flows) see Calvo et al (1993), World Bank(1997), and Feldstein (1999).

    7 See Chuhan et al (1998)

    The main question

    is whether capital

    flew into these

    countries primarily

    as a result of

    changes in global

    (largely US) factors

    or in response to

    events and

    indicators in the

    recipient countries

    like their credit

    rating and domestic

    stock market return.

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    As for the motivation of US equity investment in foreign

    markets, recent research8 suggests that US portfolio managers investing

    abroad seem to be chasing returns in foreign markets rather than sim-

    ply diversifying to reduce overall portfolio risk. The findings include

    the well-documented home bias in OECD investments, high turnover

    in foreign market investments and that, in general, the patterns of

    foreign equity investment were far from what an international portfolio

    diversification model would recommend. The share of investments

    going to emerging markets has been roughly proportional to the share

    of these markets in global market capitalisation but the volatility of US

    transactions was even higher in emerging markets than in other OECD

    countries. Furthermore, there was no relation between the volume of US

    transactions in these markets and their stock market volatility.

    The Mexican and Asian crises and the widespread outcry

    against international portfolio investors in both cases have prompted

    analyses of short-term movements in international portfolio investment

    flows. The question of feedback trading has received considerable

    attention. This refers to investors reaction to recent changes in equity

    prices. If a gain in equity values tends to bring in more portfolio

    inflows, it is an instance of positive feedback trading while a decline

    in flows following a rise in equity values is termed negative feedback

    trading. Between 1989 and 1996 unexpectedequity flows from abroad

    raised stock prices in Mexico at the rate of 13 percentage points for

    every 1 per cent rise in the flows.9 There has been, however, no evi-

    dence of feedback trading among foreign investors in Mexico. In the

    period leading to the Asian crisis, on the other hand, Korea witnessed

    positive feedback trading and significant herding among foreign

    investors.10 Nevertheless, contrary to the belief in some segments, these

    tendencies actually diminished markedly in the crisis period and there

    has been no evidence of any destabilising role of foreign equity

    investors in the Korean crisis. While FII flows to the Asian Crisis

    countries dropped sharply in 1997 and 1998 from their pre-crisis levels,

    it is generally held that the flows reacted to the crisis (possibly exacer-

    bating it) rather than causing it.

    More recent studies11 find that the effect of regional factors as

    determinants of portfolio flows has been increasing in importance over

    time. In other words portfolio flows to different countries in a region

    tend to be highly correlated. Also the flows are more persistent thanreturns in the domestic markets. Feedback trading or return-chasing

    behaviour is also more pronounced. The flows appear to affect contem-

    poraneous and future stock returns positively, particularly in the case of

    8 See Bohn and Tesar (1996) and Tesar and Werner (1995a) for studies offlows to OECD countries and Tesar and Werner (1995b) for a study of US portfolioflows to emerging markets.

    9 See Clark and Berko (1997)10 See Choe et al (1999)11 See, for instance, Froot et al (2001)

    As for the

    motivation of US

    equity investment in

    foreign markets,

    recent research

    suggests that US

    portfolio managers

    investing abroad

    seem to be chasing

    returns in foreign

    markets rather than

    sim-ply diversifying

    to reduce overall

    portfolio risk.

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    emerging markets. Finally stock prices seem to behave on the assump-

    tion of persistent portfolio inflows.

    It is commonly argued that local investors possess greater

    knowledge about a countrys financial markets than foreign investors

    and that this asymmetry lies at the heart of the observed home bias

    among investors in industrialised countries. A key implication of recent

    theoretical work in this area12 is that in the presence of such informa-

    tion asymmetry, portfolio flows to a country would be related to returns

    in both recipient and source countries. In the absence of such asymme-

    try, only the recipient countrys returns should affect these flows.

    III. Foreign Institutional Investment in India: An OverviewIndia opened its stock markets to foreign investors in Septem-

    ber 1992 and has, since 1993, received considerable amount of portfo-

    lio investment from foreigners in the form of Foreign Institutional

    Investors (FII) investment in equities. This has become one of the main

    channels of international portfolio investment in India for foreigners.13

    In order to trade in Indian equity markets, foreign corporations need to

    register with the Securities and Exchange Board of India (SEBI) as

    FIIs.14 The SEBI definition of FIIs presently includes foreign pension

    funds, mutual funds, charitable/endowment/university funds etc. as well

    as asset management companies and other money managers operating

    on their behalf.

    The trickle of FII flows to India that began in January 1993 has

    gradually expanded to an average monthly inflow of close to Rs. 1,900

    crore during the first six months of 2001. By June 2001, over 500 FIIs

    were registered with SEBI. The total amount of FII investment in India

    had accumulated to a formidable sum of over Rs. 50,000 crore during

    this time (see Chart 1). In terms of market capitalisation too, the share

    of FIIs has steadily climbed to about 9 per cent of the total market

    capitalisation of BSE (which, in turn, accounts for over 90 per cent of

    the total market capitalisation in India).

    The sources of these FII flows are varied. The FIIs registered

    with SEBI come from as many as 28 countries (including money

    management companies operating in India on behalf of foreign inves-

    tors). US-based institutions accounted for slightly over 41 per cent,

    those from the UK constitute about 20 per cent with other Western

    European countries hosting another 17 per cent of the FIIs (see Chart 2).

    12 See Brennan and Cao (1997)13 The closed-end country fund, The India Fund launched in June 1986

    provided a channel for portfolio investment in India before the stock marketliberalisation in 1992. Global Depository Receipts, American Depository Receipts,Foreign Currency Convertible Bonds and Foreign Currency Bonds issued by Indiancompanies and traded in foreign exchanges provide other routes for portfolioinvestment in India by foreign investors.

    14 It is also possible for foreigners to trade in Indian securities withoutregistering as an FII; but such cases require approval from the RBI or the ForeignInvestment Promotion Board.

    The effect of

    regional factors as

    determinants of

    portfolio flows has

    been increasing in

    importance over

    time. In other words

    portfolio flows to

    different countries in

    a region tend to be

    highly correlated.

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    0

    100

    200

    300

    400

    500

    600

    Months

    0

    10000

    20000

    30000

    40000

    50000

    60000

    Number of registered .IIs

    Cumulative Investment

    USA42%

    UK20%

    WEurope17%

    Hong Kong

    6%Singapore

    4%Australia

    4%

    MiddleEast

    1%

    Canada2%

    Japan1%

    India1%

    Others2%

    CHART 1Growth of FII Investment in India

    CHART 2Sources of FII Investment in India

    Source: SEBI website

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    Box 2: Some descriptive statistics of FII flows to India

    The histogram and descriptive statistics for net FII flows between January 1993 andDecember 1999, the sample period selected for our analysis, are given in Panel A ofFigure 3. A Jarque-Bera test of normality in the distribution of FII flows fails to rejectthe null hypothesis of normality for the data during the sample period. The flows,however, are somewhat volatile with a coefficient of variation of over 1.22. They arealso considerably auto-correlated. The auto-correlation with one lag is over 0.5 and

    that with two lags is over 0.26.CHART 3 Panel A

    Histogram and descriptive statistics of FII flows

    Panel A: Net FII flows (Rs. Crores)

    02

    175

    15

    125

    01

    075

    05

    025

    025

    05

    075

    01

    125

    15

    175

    02

    225

    25

    275

    03

    325

    35

    375

    04

    425

    45

    475

    05

    re

    CHART 3 Panel B

    Histogram and descriptive statistics of FII flows

    Panel B: FII flows as a proportion of previous months' BSE market capitalisation

    Panel B of Figure 3 shows the histogram and descriptive statistics for FII flows as aproportion of the preceding months BSE market capitalisation. Here the coefficient ofvariationjust above 1.13is slightly less than in the flows themselves implying thatthe market capitalisation itself is more volatile than the FII flows. The Jarque-Bera teststatistic rejects the null hypothesis of normality at 1 per cent level in this case. Thedegree of auto-correlation is about as strong, i.e. 0.49 with one lag and much strongerover 0.38for two lags.

    Sample: 1993:051999:12Observations 80

    Mean 0.001024Median 0.000879Maximum 0.004929Minimum -0.001595Std. Dev. 0.001161Skewness 0.576284Kurtosis 4.249903

    Jarque-Bera 9.635571Probability 0.008085

    -0.002

    -0.00175

    -0.0015

    -0.00125

    -0.001

    -0.00075

    -0.0005

    -0.000250

    0.00025

    0.0005

    0.00075

    0.001

    0.00125

    0.0015

    0.00175

    0.002

    0.00225

    0.0025

    0.00275

    0.003

    0.00325

    0.0035

    0.00375

    0.004

    0.00425

    0.0045

    0.00475

    0.005

    More

    Sample: 1993:051999:12

    Observations 80

    Mean 439.5139Median 406.6350Maximum 1673.000Minimum -896.4100Std. Dev. 539.2140Skewness 0.080577Kurtosis 3.274955

    Jarque-Bera 0.338569Probability 0.844269

    Net FII Flows (Rs. Crores)

    Fre

    quency

    12

    10

    8

    6

    4

    2

    0

    -900

    -800

    -700

    -600

    -500

    -400

    -300

    -200

    -1000

    100

    200

    300

    400

    500

    600

    700

    800

    900

    1000

    1100

    1200

    1300

    1400

    1500

    1600

    1700

    More

    FII flows as a proportion of previous months BSE market capitalization

    Frequency

    18

    16

    14

    12

    10

    8

    6

    4

    2

    0

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    It is, however, instructive to bear in mind that these national affiliations

    do not necessarily mean that the actual investor funds come from these

    particular countries. Given the significant financial flows among the

    industrial countries, national affiliations are very rough indicators of

    the home of the FII investments. In particular institutions operating

    from Luxembourg, Cayman Islands or Channel Islands, or even those

    based at Singapore or Hong Kong are likely to be investing funds

    largely on behalf of residents in other countries. Nevertheless, the

    regional breakdown of the FIIs does provide an idea of the relative

    importance of different regions of the world in the FII flows.

    Some descriptive statistics about the FII flows are provided in

    Box 2. The data used for this and the analysis in the remainder of the

    paper are described in Appendix 1.

    IV. Factors affecting FII flowsIn this section we shall study the relationship between FII flows

    and possible economic factors affecting it, particularly stock returns in

    the Indian market.

    FII flows and stock returnsdetermining

    the cause and the effect

    FII flows and contemporaneous stock returns are strongly

    correlated in India. The correlation coefficients between different

    measures of FII flows and market returns on BSE during different

    sample periods are shown in the different panels ofTable 1. While the

    TABLE 1FII flows and Returns on BSECorrelations

    Net FII FII flow as pro- Return onflow portion of pre- BSE Natio-

    ceding months nal IndexBSE market cap (Rupees)

    Panel A: Entire Sample: May1993 Dec 1999

    FII flow as proportion of precedingmonths BSE market cap 0.93

    Return on BSE National Index (Rupees) 0.52 0.56

    Return on BSE National Index (US $) 0.53 0.58 0.98

    Panel B: Pre-Asian Crisis period: May 1993 June 1997

    FII flow as proportion of precedingmonths BSE market cap 0.88

    Return on BSE National Index (Rupees) 0.40 0.56

    Return on BSE National Index (US $) 0.41 0.58 0.98

    Panel C: Asian Crisis and after: July 1997 Dec 1999

    FII flow as proportion of precedingmonths BSE market cap 0.99

    Return on BSE National Index (Rupees) 0.67 0.66

    Return on BSE National Index (US $) 0.67 0.66 0.98

    Given the significant

    financial flows

    among the industrial

    countries, national

    affiliations are very

    rough indicators of

    the home of the FII

    investments.

    Nevertheless, the

    regional breakdown

    of the FIIs does

    provide an idea of

    the relative

    importance ofdifferent regions of

    the world in the FII

    flows.

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    correlations are quite high throughout the sample period, they exhibit a

    significant rise since the beginning of the Asian crisis.

    These positive correlations have often been held as evidence of

    FII actions determining Indian equity market returns. However, correla-

    tion itself does not imply causality. A positive relationship between

    portfolio inflows and stock returns is consistent with at least four

    distinct theories: (1) the omitted variables hypothesis; (2) the down-

    ward sloping demand curve view; (3) the base-broadening theory;

    and (4) the positive feedback strategy view.

    The omitted variables view is the classic case of spurious

    correlationthat the correlated variables, in fact, have no causal

    relationship between them but are both affected by one or more other

    variables missed out in the analysis. The downward sloping demand

    curve view contends that foreign investment creates a buying pressure

    for stocks in the emerging market in question and causes stock prices to

    rise much in the same way as suddenly higher demand for a commodity

    would cause its price to rise. The base-broadening argument contends

    that once foreigners begin to invest in a country, the financial markets

    in that country are now no longer moved by national economic factors

    alone but rather begin to be affected by foreign market movements as

    well. As the market itself is now affected by more factors than before,

    its exposure to domestic shocks declines. Consequently the risk of the

    market itself falls, people demand a lower risk premium to buy stocks,

    and stock prices rise to higher levels. Finally the positive feedback

    view asserts that if investors chase returns in the immediate past (like

    the previous day or week) then aggregating their fund flows over the

    month can lead to a positive relationship in the contemporaneous

    monthly data.

    In the present context, both directions of causation are equally

    plausible. Detailed statistical tests (see Box 3) however, indicate that

    the FII flows are likely to have been more of an effectof market returns

    in India than their cause.

    Further statistical tests (see Box 4) suggest that returns on the

    Bombay Stock Exchange (BSE) Index explain close to a third of the

    total variation in FII flows during the entire period. They also indicate,

    however, that the Asian crisis marked a regime shift in the relationship

    between FII flows and Indian stock market return. During and after the

    crisis, the returns explained about 40 per cent of the total variation inFII flows.

    The positive relationship between market return and FII flows,

    however, serves only as a first-pass in understanding the nature of such

    flows and their implications for the Indian markets. Since the FII flows

    essentially serve to diversify the portfolio of foreign investors, it is only

    normal to expect that several factorsboth domestic as well as exter-

    nal to Indiaare likely to affect them along with the expected stock

    The positive

    relationship

    between market

    return and FII flows,however, serves

    only as a first-pass

    in understanding the

    nature of such flows

    and their

    implications for the

    Indian markets.

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    BOX 3: FII flows and Equity Returns in India: Cause or Effect?

    Pair-wise Granger causality tests between net FII inflows (as a proportion of preced-ing months BSE market capitalisation) and monthly return on the BSE NationalIndex, reported in Table 2, Panel A fail to categorically establish a causal directionsince non-causality is rejected in both directions at least at the 5 per cent level ofsignificance. During the pre-Asian Crisis period, however, there seems to be some

    support for the causality running from flows to returns, while with the onset of theAsian Crisis, there is mild evidence of a reversal of causality. On the whole then, theissue of which is the cause and which is the effect remains indeterminate withmonthly data.

    . . . continued on following page

    TABLE 2

    Granger Causality tests between Returns on the BSE National Index on

    FII investment flows

    Panel A: Monthly Data1993 to 1999

    Null Hypothesis Entire Pre-Asian Asian Crisis

    Sample Crisis and after Returns+ do not cause FII flows# 3.2105 0.975 2.29915

    Flows do not cause returns 6.1471 2.74410 1.738

    The tests use two lags.+ Monthly Returns on the BSE National Index# Ratio of net FII flows to BSE market capitalisation in the previous month1, 5,10 and 15 denote significance at 1 per cent, 5 per cent, 10 per cent and 15 per cent levels

    respectively.

    Panel B: Daily DataJanuary 1, 1999 to December 31, 1999

    Lags considered 2 3 4 5 6

    Null Hypothesis

    Returns+ do not cause FII flows# 8.3861 5.5331 4.2231 4.0851 3.2561

    Flows do not cause returns 0.963 0.766 1.891 1.732 1.399

    + Daily Returns on the BSE National Index# Ratio of net FII flows to BSE market capitalisation in the previous month1, 5,10 and 15 denote significance at 1 per cent, 5 per cent, 10 per cent and 15 per cent levels

    respectively.

    In order to dig deeper into the issue of direction of causality then, we have to usedaily data. Fortunately daily data are available (from SEBI website) on net FII flowssince January 1999. Thus in order to get a better sense of the direction of causality werun pair-wise Granger-causality tests with daily data for 1999 at several lags andreport these results in Panel B of Table 2. Here the results seem to be far moreunequivocal. At all lags the Granger causality tests reject the hypothesis of returnsnot causing flows at the 1 per cent level while the null hypothesis of reverse non-causality is never rejected. Thus this data seems to support the view that the FII flowsare more an effectthan a cause of market returns in India. Chart 4shows the weeklypatterns in returns and FII flows during 1999.

    One qualifier may not, however, be out of place here. Loosely speaking, Table 2,Panel A seems to suggest a slight reversion of causality between flows and returns in

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    the pre-Asian crisis period and that of the later period. Since the daily data comesentirely from the post-Asian crisis period, it may be still be true that the reversecausation was in effect in the pre-crisis period.Finally, the model-free approach of detecting causality between the two variablessimply by using Granger causality can only serve as a preliminary check for thedirection of causality. The orthodox way of doing such analysis would almost alwaysbegin with a priorimodelling of these variables. However, since in financial markets,information flows drive both returns and investment flows, implications about cau-sality between these two variables can also be highly model-specific. In such asituation an agnostic test like Granger causality does have some usefulness in detect-ing the direction of causality.

    CHART 4

    Returns and FII flows during 1999

    returns in India. Past research suggests15 that the declining world

    interest rates have been among the important push factors for

    international portfolio flows in the early 90s. The usual suspects in

    the literature include US and world equity returns, changes in interest

    rates, stock market volatility, some measure of the country risk and the

    exchange rate. In the Indian case, however, these factors do not appear

    to have had a prominent role in motivating FII flows (see Box 4).

    Finally it also appears that there has been no significant informationaldisadvantage for FIIs vis--vis the local investors in the Indian market.

    Other factors that may affect FII flows

    Country risk measures, that incorporate political and other

    risks in addition to the usual economic and financial variables, may be

    expected to have an impact on portfolio flows to India though they are

    15 See Calvo et al (1993)

    Return

    .II flow

    AverageFIIflowduringtheweek(as

    aproportion

    ofpreviousmonths'BSEmarketcapitalization)

    Averagedailyreturnduringa

    week

    0.0004

    0.0003

    0.0002

    0.0001

    0

    -0.0001

    -0.0002

    0.03

    0.025

    0.02

    0.015

    0.01

    0.005

    0

    -0.005

    -0.01

    -0.015

    -0.02

    -0.025

    Return

    FII flow

    Weeks

    1/8/1999

    3/19/1999

    6/11/1999

    8/20/1999

    10/29/1999

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    Box 4: Further Analysis of the Determinants of FII flows

    Equity Market returns

    Table 3 presents the results of a regression of FII flows (as a proportion of theprevious months BSE capitalisation) on monthly rupee returns* on the BSE NationalIndex. Because of evidence of auto-correlated residuals from the Durbin-Watsonstatistic, Newey-West heteroskedasticity and auto-correlation consistent standard

    errors and co-variances are used in these regressions. The results indicate thatreturns on the BSE Index explain over three-tenths of the total variation in FII flowsduring the entire period. The explanatory power rises considerably with the onset ofthe Asian crisis when the regression accounts for over four-tenths of the variation.The results of a Chow breakpoint test shown in Table 3, Panel B, shows that the onsetof the Asian Crisis does mark a structural break in the relationship implying a rise inthe effect of market return in explaining FII flows.

    TABLE 3

    Regressions of FII investment flows on Monthly Returns on the

    BSE National Index

    Panel A: Dependent variable: Net monthly FII inflow as a proportion of thepreceding months BSE market capitalisation

    Entire sample Pre Asian Cris is Asian Cris is and after

    (1993:05 (1993:05 (1997:07

    1999:12) 1997:06) 1999:12)

    Constant 0.001 0.001 0.0003

    (5.624) (8.300) (1.566)

    Return on the BSE 0.008 1 0.008 1 0.0091

    National Index (4.517) (2.836) (6.124)

    Adjusted R2 0.310 0.304 0.419

    Durbin-Watson 1.016 1.241 1.24

    The regressions are estimated by OLS with Newey-West heteroskedasticity auto-correlation

    consistent standard errors and covariance. The figures in parentheses are t-statistics.1 denotes significance at 1 per cent level.

    Panel B: Chow Breakpoint Test: (Breakpoint1997:07)

    F-statistic 9.767 Probability 0.000168

    Log likelihood ratio 18.301 Probability 0.000106

    The effect of other factors

    As a second step in analysing the FII flows to India, we regress the FII flows on otherfactors identified in the literature and find out to what extent they help explain the FII

    flows. To the extent that these factors may be affecting the Indian stock returnsthemselves, this exercise throws light on the possibility of omitted variables givingrise to the correlation between FII flows and monthly stock returns.Table 4reports the results from a regression of monthly FII flows (as a proportion ofpreceding months BSE market capitalisation) on several variables in addition to themonthly return on the BSE National Index. These variables are as follows: returns onthe S&P 500 index (a major US index), returns on the MSCI world index (a majorinternational index tracked by several international investment funds), volatility ofdaily US dollar return on the BSE National Index in the preceding month (as a

    . . . continued on following page

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    measure of total risk in the Indian market), the change in the short-term (45-day)fixed deposit rate in India and the return in the foreign exchange market (a positivereturn means depreciation of rupee). Once again Newey-West standard errors andco-variances are used in response to the low D-W statistics. Only the exchange ratemovements turn out to be significant (in addition to the stock returns) in theseregressions. A comparison with Table 3shows that in the entire sample the adjustedR2 goes up only marginally (presumably because of the exchange rate effect) while it

    declines in both sub-samples. These variables thus collectively do little to explain theFII flows. The Chow test (Panel B) continues to detect a structural break with theonset of the Asian crisis.

    TABLE 4

    Regressions of FII investment flows on Monthly Returns

    on the BSE National Index

    Dependent variable: Net monthly FII inflow as a proportion of the preceding

    months BSE market capitalisation

    Entire sample PreAsian Crisis Asian Cris is and after

    (1993:05 (1993:05 (1997:07

    1999:12) 1997:06) 1999:12)

    Constant 0.002 0.002 0.0000

    (4.870) (4.053) (0.032)

    Return on the BSE 0.0081 0.0075 0.0101

    National Index (4.336) (2.439) (5.530)

    Return on the MSCI 0.000 0.007 -0.018

    World Index (0.013) (1.103) (-1.671)

    Return on the S&P -0.004 -0.010 0.016

    500 index (-0.520) (-1.552) (1.564)

    Change in Indian short- 0.008 0.070 -0.154

    term interest rate (0.082) (0.456) (-0.824)

    Return Volatility in the -0.038 -0.014 0.019

    preceding month (-1.784) (-0.474) (0.476)

    Return on exchange rate -0.0105 -0.008 -0.005

    (-2.363) (-1.609) (-0.883)

    Adjusted R2 0.321 0.277 0.361

    Durbin-Watson 1.123 1.361 1.363

    The regressions are estimated by OLS with Newey-West heteroskedasticity auto-correlation

    consistent standard errors and covariance. The figures in parentheses are t-statistics.1, 5 and 10 denote significance at 1 per cent, 5 per cent and 10 per cent levels respectively.

    Panel B: Chow Breakpoint Test: (Breakpoint1997:07)

    F-statistic 2.448 Probability 0.0271Log likelihood ratio 18.465 Probability 0.0100

    The lack of significance of the world stock returns in explaining the portfolio flowsmay be interpreted, in light of Brennan and Cao (1997), to suggest that there is nosignificant informational asymmetry between FIIs and domestic investors in India.The presence of any informational disadvantage for the FIIs would have made theworld indices a significant determinant of their investment flows.

    *The dollar returns and returns in excess of the short-term (45-day) interest rates were also used and they

    produce nearly identical results.

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    likely to matter more in the case of FDI flows. In order to check the

    impact of such country risk on FII flows, semi-annual country risk

    scores for India were taken from the Institutional Investor magazine, an

    important country-rating agency. These raw ratings were then divided

    by the world average rating to obtain normalised ratings. The intuition

    behind this normalisation is as follows. If Indias credit rating improves

    but those of other countries improve even more, then India may not

    improve its relative attractiveness as a destination of investment flows.

    The relation between the normalised country rating and the average

    monthly FII flows (as a proportion of the preceding months BSE

    capitalisation) is shown in Chart 5. The correlation between the two

    variables is 0.15. No relationship is evident from the figure itself and

    statistical testing confirms this view16. Thus we can conclude that

    broadly speaking there is no evidence of India credit rating affecting

    FII flows.

    CHART 5

    Credit Rating and Subsequent FII flows

    It is also conceivable that the extent to which the Indian market

    moves out of step with the world market is a factor in determining its

    attractiveness to foreign investors. The lower the co-movement, the

    greater the protection that investment in India provides to investorsagainst world market shocks. Statistical tests (see Box 5) indicate that

    this was indeed true in the pre-Asian Crisis period but ceased to hold in

    the Crisis period.

    16 A Granger causality test fails to reject the null hypothesis that therating does not cause FII flows at the 10% level.

    Normalized Rating

    .II flow

    Averagemonthly

    FIIflow(asapercentageofBSEmarket

    capintheprecedingmonth)forthefollowing6months0.30%

    0.25%

    0.20%

    0.15%

    0.10%

    0.05%

    0.00%

    -0.05%

    Sep-9

    3

    Mar-9

    4

    Sep-9

    4

    Mar-9

    5

    Sep-9

    5

    Mar-9

    6

    Sep-9

    6

    Mar-9

    7

    Sep-9

    7

    Mar-9

    8

    Sep-9

    8

    Mar-9

    9

    Sep-9

    9

    India'scre

    ditratingasamultipleofglobal

    averagecreditrating

    1.9

    1.7

    1.5

    1.3

    1.1

    0.9

    Normalised Rating

    FII flow

    It is also

    conceivable that the

    extent to which the

    Indian market

    moves out of step

    with the world

    market is a factor in

    determining its

    attractiveness to

    foreign investors.

    . . . Statistical tests

    indicate that this

    was indeed true in

    the pre-Asian Crisis

    period but ceased tohold in the Crisis

    period.

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    BOX 5: Indias status as a hedge against world shocks

    According to the standard International Capital Asset Pricing Model (ICAPM) ap-proach, the measure of risk of holding the Indian market in an internationallydiversified portfolio is given by the beta of the Indian market (slope of the regres-sion of Indian returns on world returns) with respect to the relevant world market.Thus, if the beta of the Indian market decreases, it is likely to improve the attractive-

    ness of the Indian market to the international investor simply for the benefits of totalrisk reduction through diversification.

    In order to check this relationship we compute the betaof monthly US dollarsreturn on the BSE National Index with returns on the S&P 500 index

    [)(

    ),(

    500

    500

    SP

    SPBSE

    rVar

    rrCov= ] and returns on the MSCI world index. The betas for

    each month are computed using returns data for the previous 24 months. Chart 6shows the data and Table 5shows the regression estimates. The regressions indi-cate that the beta of the Indian market with respect to the S&P 500 has a significanteffect in explaining FII investment flows before the Asian crisis but not during or

    after the crisis period. The beta with respect to the world market is insignificant inboth periods. The Chow test (Panel B), however, rejects the null hypothesis of nostructural break at the onset of the Asian crisis only at the 15 per cent level.

    CHART 6

    FII flows and the beta of the Indian market with respect to S&P 500

    . . . continued on following page

    .II flow

    beta_S&P500

    FII flow

    beta_S$P500

    BetaofBSENationalIndexwithrespecttoS&P500

    1

    0.5

    0

    -0.5

    -1

    -1.5

    -2

    -2.5

    FIIflow(percentageofprecedingmonth's

    BSEmarketcapitalization)

    0.006

    0.005

    0.004

    0.003

    0.002

    0.001

    0

    -0.001

    -0.002

    Months (May 1993 to December 1999)

    Jul-93

    Jan-9

    4

    Jul-94

    Jan-9

    5

    Jul-95

    Jan-9

    6

    Jul-96

    Jan-9

    7

    Jul-97

    Jan-9

    8

    Jul-98

    Jan-9

    9

    Jul-99

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    TABLE 5

    Regressions of FII investment flows on betas of the BSE National Index with

    respect to S&P500 and the MSCI World Index

    Panel A: Dependent variable: Net monthly FII inflow as a proportion of the

    preceding months BSE market capitalisation

    Entire sample Pre Asian Cris is Asian Cris is and after

    (1993:05 (1993:05 (1997:07 1999:12) 1997:06) 1999:12)

    Constant 0.001 0.001 0.001

    (5.685) (6.980) (2.408)

    Beta (S&P 500) -0.001 -0.0015 0.0001

    (-1.848) (-2.324) (0.391)

    Beta (MSCI World Index) -0.0002 0.0002 -0.002

    (-0.314) (0.387) (-1.330)

    Adjusted R2 0.179 0.119 0.067

    Durbin-Watson 1.323 1.349 1.457

    The regressions are estimated by OLS with Newey-West heteroskedasticity auto-correlationconsistent standard errors and covariance. The figures in parentheses are t-statistics.5 denotes significance at the 5 per cent level.

    Panel B: Chow Breakpoint Test: (Breakpoint1997:07)

    F-statistic 1.983 Probability 0.123

    Log likelihood ratio 6.186 Probability 0.103

    VI. Main Findings and ConclusionThe empirical investigation of FII flows to India have elicited

    the following stylised facts about the such flows:

    a. FII flows are correlated with contemporaneous returns in the

    Indian markets.

    b. This high correlation is not necessarily evidence of FII flows

    causing price pressureif anything, the causality is likely to

    be the other way around.

    c. A collection of domestic and international variables likely to

    affect both flows and returns fails to diminish the importance of

    contemporaneous returns in explaining FII flows.

    d. Since the US and world returns are not significant in explainingthe FII flows, there is no evidence17 of any informational

    disadvantage of FIIs in comparison with the domestic investors

    in India.

    e. Changes in country risk ratings for India do not appear to

    affect the FII flows.

    f. The beta of the Indian market with respect to the S&P 500

    index (but not the beta with respect to the MSCI world index)

    17 In the sense of the Brennan and Cao (1997) model.

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    seems to affect the FII flows inversely but the effect disappears

    in the postAsian crisis period.

    g. There appears to be significant differences in the nature of FII

    flows before and after the Asian crisis. In the post Asian crisis

    period it seems that the returns on the BSE National Index have

    become the sole driving force behind FII flows.

    The stylised facts listed above lead to a better understanding ofFII flows to India. The weakness of the evidence of causality from flows

    to returns contradicts the view that the FIIs determine market returns in

    general, though herding effectsparticularly with domestic specula-

    tors imitating FII movesmay well be present in cases of individual

    stocks. Particularly since the Asian crisiswhich seems to have brought

    about a regime shift in the relationship between FII flows and stock

    market returnsthe direction of causation seems to be running from the

    returns to the flows. The relative stability in the exchange rate of the

    Indian Rupee in the post-Asian crisis era seems to have outweighed

    fluctuations in the countrys credit rating among foreign portfolioinvestors.

    It is notable that the Asian crisis appears to have acted as a

    watershed in several of the key relationships affecting the FII flows to

    India. This is not an overly surprising result. Recent research18 has

    demonstrated that the Asian crisis caused several major changes in the

    financial relationship among European countries half-way across the

    globe. In fact the crisis appeared to have altered several of the ground

    rules of international portfolio investing around the world. Why

    exactly the relationships analysed here demonstrate a structural break

    at the outbreak of the Asian crisis is a matter of speculation. However,it is plausible that the crisis and Indias relative imperviousness to it

    increased Indias attractiveness to portfolio investors particularly as

    many other emerging markets began to appear extremely risky. This

    substitution effect may well have drowned other long-term relation-

    ships. Besides, investors may have started paying closer attention to

    obtaining and processing information in destination countries in the

    wake of the Asian crisis causing an information effect that could have

    altered the past relationship as well. Finally, behavioural changes

    among international portfolio investors following the crisis cannot be

    ruled out either.Another important area is the mild evidence towards the FII

    flows being affected by returns in the Indian markets in the immediate

    past. Such a relationship suggests that given the thinness of the Indian

    market and its evident susceptibility to manipulations, FII flows can, in

    fact, aggravate the occurrence of equity market bubbles though they

    18 See Chakrabarti and Roll (2002).

    There appears to be

    significant

    differences in the

    nature of FII flows

    before and after the

    Asian crisis. In the

    post Asian crisis

    period it seems that

    the returns on the

    BSE National Index

    have become the

    sole driving force

    behind FII flows.

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    may not actually startthem. This is obviously an important concern for

    policy makers and market regulators.

    This paper provides a preliminary analysis of FII flows to India

    and their relationship with several relevant variables especially returns

    in the Indian stock market. A more detailed study using daily data for a

    longer period or, better still, disaggregated data showing the transac-

    tions of individual FIIs at the stock level can help address questions

    regarding the extent of herding or return-chasing behaviour among

    FIIsindicators that can help us estimate the probability of sudden

    Mexico-type reversals of these FII flows which now account for a

    significant part of the capital account balance in our balance of pay-

    ments. The extent to which FII participation in Indian markets has

    helped lower cost of capital to Indian industries is also an important

    issue to investigate.

    Broader and more long-term issues involving foreign portfolio

    investment in India and their economy-wide implications19 have not

    been addressed in this paper. Such issues would invariably require an

    estimation of the societal costs of the volatility and uncertainty associ-

    ated with FII flows. A detailed understanding of the nature and determi-

    nants of FII flows to India would help us address such questions in a

    more informed manner and allow us to better evaluate the risks and

    benefits of foreign portfolio investment in India.

    19 Like those raised in Pal (1998).

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    Feldstein, Martin, ed. 1999. International Capital Flows, The University of ChicagoPress, Chicago and London.

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    Appendix I: A Description of the DataThe data used in this paper comes from several sources. We use

    monthly net FII investment figures obtained from the websites of RBI

    and SEBI. Market capitalisation data are obtained from the BSE

    website. Other financial data like the exchange rate, short-term interest

    rate in India, returns on the MSCI world index, S&P 500 as well as the

    BSE national index are obtained from Datastream. Country credit

    rating data are obtained from several issues of the Institutional Investor

    magazine.

    The FII net investment series starts from January 1993 and the

    BSE market capitalisation series starts in April 1993. The series of FII

    flows as a proportion of preceding months BSE market capitalisation

    therefore begins in May 1993.

    Since the net monthly FII flows and the returns in the Indian

    equity markets constitute two key variables in this study, we present, in

    the three panels of Figure 1, the net FII flows, the BSE National Index

    and net FII flows as a proportion of the preceding months BSE market

    capitalisation from May 1993 to June 2001. The BSE National Index

    immediately reveals the massive and short-lived bubble during 2000,

    a phenomenon that is likely to have caused temporary but marked

    deviations from the long-term relationship between FII flows and Indian

    market returns. In order to avoid misleading results from this poten-

    tially tainted period, we restrict our sample to the end of 1999 for

    carrying out empirical analyses.

    In order to check if the Asian crisis marked a structural break

    in the relationships studied here, we sub-divide the sample period into

    two sub-samples. Dating the Asian crisis to begin in July 1997*, the

    pre-Asian Crisis sub-sample runs from May 1993 to June 1997 (50

    months) and the Asian crisis sub-sample runs from July 1997 to Decem-

    ber 1999 (30 months).

    In order to study the causal linkage between FII flows and

    contemporaneous stock returns in greater detail, we also use daily FII

    flows data and daily returns on the BSE National Index for the year

    1999. The daily FII flows data come from the SEBI website while the

    daily returns data are, once again, obtained from Datastream. All

    returns are computed on continuous compounding basis i.e. as the

    excess of the logarithm of the index value on a date over the logarithm

    of the index value on the previous date.

    *This is the date generally accepted in the literature: see Corsetti et al (1999).

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