scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Transparency, Price Informativeness, and Stock Return Synchronicity: Theory and Evidence

01 Oct 2010-Journal of Financial and Quantitative Analysis (Cambridge University Press)-Vol. 45, Iss: 5, pp 1189-1220
TL;DR: In this paper, the authors argue that a more informative stock price today means higher return synchronicity in the future, and they find empirical support for their theoretical predictions in three settings: namely, firm age, seasoned equity offerings (SEOs), and listing of American Depositary Receipts (ADRs).
Abstract: This paper argues that, contrary to the conventional wisdom, stock return synchronicity (or R2) can increase when transparency improves. In a simple model, we show that, in more transparent environments, stock prices should be more informative about future events. Consequently, when the events actually happen in the future, there should be less “surprise” (i.e., less new information is impounded into the stock price). Thus a more informative stock price today means higher return synchronicity in the future. We find empirical support for our theoretical predictions in 3 settings: namely, firm age, seasoned equity offerings (SEOs), and listing of American Depositary Receipts (ADRs).

Summary (3 min read)

Introduction

  • This paper argues that, contrary to the conventional wisdom, stock return synchronicity (or R2) can increase when transparency improves.
  • The other is time-invariant, such as managerial quality.
  • Listing events is the main focus of their empirical exercise and the authors find strong support for it in the data.
  • First, the authors address the literature on transparency, informativeness of stock prices, and stock return synchronicity by arguing that a more transparent firm can have a higher return synchronicity, contrary to the conventional wisdom.

Theory

  • 6 Lang and Lundholm (1996) examine the relation between firms’ disclosure policies, analyst following, and the accuracy of analysts’ forecasts.
  • Here, captures market factors that are observed by all; tf t,1θ and t,2θ are firm-specific shocks.
  • Outsiders only observe t,1θ , whereas insiders observe both t,1θ and t,2θ .
  • The authors now depart from Jin and Myers (2006) by assuming that there is a change in the firm’s disclosure policy and the firm becomes more transparent.

A.1. Lumpy (One-Time) Information Disclosure

  • During SEOs or ADR listings, the firm becomes more transparent in the sense that a big chunk of information comes out that otherwise would have come out later, or perhaps not at all.
  • For simplicity of exposition, the authors make the extreme assumption that the information revealed at disclosure affects only the cash flow shock one period later, i.e. it is relevant for events that occur one period later only.
  • 0t Proposition 1(a). (i) The proportion of the realized variation in period (i.e. between and0t 0t 10 +t ) explained by market factors is higher for a firm that experience an improvement in disclosure at than one that does not.
  • The return synchronicity will increase subsequently – there is less information content to later announcements since part of the information is already impounded in the stock price.

A.2. Regular Early Disclosure of Information

  • To formalize this notion of transparency, the authors assume that at the beginning of every period, there is some disclosure that reduces the variance of the cash flow shock revealed to the public at the end of the period.
  • The result that the return synchronicity actually increases in this case may be somewhat surprising.
  • The reason is that the information revealed at the end of the period regarding the cash flow innovation still one period later is discounted relative to the information revealed at the beginning of the period, since the former is relevant for a more distant cash flow.
  • Moreover, define the information set Proof: . 8 West (1988) considers a very general framework that has a similar implication.
  • Alternatively and as the authors show in this section, it can also be associated with either early disclosure of time-varying firm specific information, or disclosure of time-invariant information about firm characteristics, which may cause return synchronicity to increase.

IV. Empirical Evidence

  • This section provides evidence consistent with the theory outlined above, in three different settings.
  • Consistent with their univariate analysis, firm age is associated with significantly higher R2 (and thus lower LSSE), at the 1% levels, reflecting learning about the time-invariant information.
  • Therefore, the authors follow Roll (1988), Piotroski and Roulstone (2004), Durnev, Morck, Yeung, and Zarowin (2003), and Durnev, Morck, and Yeung (2004) by adding industry returns in the standard market model regression.
  • Inclusion of additional risk factors do not change the age effect on return synchronicity (columns (3) and (4) of Panel A in Table 2).
  • One such setting is seasoned equity offerings (SEOs).

B.1. Empirical Specification

  • To capture the inter-temporal response of R2 around SEOs, the authors pursue a specification that imposes very little structure on the response dynamics.
  • Thus earnings smoothing would bias against their results, by raising R2 prior to ADR or SEO events.
  • Hypothesis 2 derives from the second part of Proposition (1a).16 Hypothesis 1.
  • That is, SEOs are not randomly assigned; there might be unobserved firm characteristics that simultaneously affect the SEO decisions and return synchronicity.
  • Second, the authors include firm-fixed effects in all their estimations.

B.2. Results

  • Compared to non-SEO firm-years, SEO firm-years differ in almost all firm characteristics, suggesting that firm characteristics need to be controlled for in their later analysis.
  • The impacts of other firm control variables are similar to those in Table 2.
  • Then according to their Proposition 1(b) and Proposition 2, the return synchronicity may continue to be higher.
  • Consistent with their model’s predictions, ADRs are associated with a persistent drop in firm specific information in stock prices (i.e., higher R2) in the years after the listings.
  • 21 Specifically, the authors define countries with a score above 20 We note that some firms may cross list in countries other than the U.S.the authors.

V. Conclusion

  • Existing literature has taken the perspective that if a firm’s information environment causes stock prices to reflect more firm-specific information, market factors should explain a smaller proportion of the variation in stock returns.
  • The authors empirical evidence is drawn from three different settings.
  • In particular, return synchronicity decreases prior to these events, and increases subsequently.
  • Overall, the authors make two contributions to the literature.
  • First, by showing both theoretically and empirically that stock return synchronicity can increase with improved firm transparency, the authors highlight the importance of understanding the nature of information discovery and the dynamics of response of stock return synchronicity to changes in information environment.

Did you find this useful? Give us your feedback

Figures (7)

Content maybe subject to copyright    Report

Stock Return Synchronicity and the Informativeness of
Stock Prices: Theory and Evidence
1
Sudipto Dasgupta
Jie Gan
+
Ning Gao
#
JEL Classification Code: G14, G39
Keywords: Stock return synchronicity; R
2
; Firm-specific return variation; Informativeness
of stock prices; Transparency; Seasoned equity offering; Cross listing.
1
We thank Utpal Bhattacharya, Michael Brennan, Kalok Chan, Craig Doidge, Art Durnev, Robert Engle, Li Jin,
Ernst Maug, Stewart Myers, Wei Jiang, Anil Makhija, Bill Megginson, Randall Morck, Mark Seasholes, Jeremy
Stein, Martin Walker, Bernard Yeung and participants at the 2006 Financial Intermediation Research Society
Conference and the 2006 WFA Conference for helpful comments and discussions. We are grateful to Hendrik
Bessembinder (the editor) and two anonymous referees for their comments and suggestions which greatly improved
the paper.
Department of Finance, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong
Kong. Email: dasgupta@ust.hk.
+
Department of Finance, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong
Kong. Email: jgan@ust.hk.
#
The Manchester Accounting and Finance Group, Manchester Business School, the University of Manchester,
Booth Street West, Manchester, M15 6PB, United Kingdom. Email: ning.gao@mbs.ac.uk.
1

Stock Return Synchronicity and Informativeness of Stock
Prices: Theory and Evidence
Abstract
This paper argues that, contrary to the conventional wisdom, stock return synchronicity (or R
2
) can
increase when transparency improves. In a simple model, we show that, in more transparent
environments, stock prices should be more informative about future events. Consequently, when the
events actually happen in the future, there should be less “surprise”, i.e., there is less new information
impounded into the stock price. Thus a more informative stock price today means higher return
synchronicity in the future. We find empirical support for our theoretical predictions in three settings,
namely firm age, seasoned equity issues, and listing of ADRs.
JEL Classification Code: G14, G39
Keywords: Stock return synchronicity; R
2
; Firm-specific return variation; Informativeness
of stock prices; Transparency; Seasoned equity offering; Cross listing.
2

I. Introduction
Financial economists generally agree that in efficient markets, stock prices change to
reflect available information – either firm-specific or market-wide. Recent literature has
addressed the question of how a firm’s information environment (disclosure policy, analyst
following) or its institutional environment (property rights protection, quality of government,
legal origin) can affect the relative importance of firm-specific as opposed to market wide factors
(Jin and Myers (2006), Piotroski and Roulstone (2003), Chan and Hameed (2006), and Morck,
Yeung, and Yu (2000)). This literature has taken the perspective that if the firm’s environment
causes stock prices to aggregate more firm-specific information, market factors should explain a
smaller proportion of the variation in stock returns. In other words, the stock return synchronicity
or R
2
from a standard market model regression should be lower.
This perspective, while intuitive, is at odds with another equally intuitive implication of
market efficiency. In efficient markets, stock prices respond only to announcements that are not
already anticipated by the market. When the information environment surrounding a firm
improves and more firm-specific information is available, market participants are also able to
improve their predictions about the occurrence of future firm-specific events. As a result,
prevailing stock prices are likely to already “factor in” the likelihood of occurrence of these
events. When the events actually happen in the future, the market will not react to such news,
since there is little “surprise”. In other words, more informative stock prices today should be
associated with less firm-specific variation in stock prices in the future. Therefore, the return
synchronicity should be higher.
In this paper, we present a simple model to illustrate the point that a more transparent
information environment can lead to higher, rather than lower, stock return synchronicity. This is
3

because, for a more transparent firm, there is already more information available to market
participants, reducing the “surprise” from future announcements. In our model, we distinguish
between two types of firm-specific information. One pertains to time-varying firm
characteristics, reflecting the current state of the firm, such as next quarter’s earnings. The other
is time-invariant, such as managerial quality.
2
Stock return synchronicity can increase
subsequent to an improvement in transparency through disclosure of both types of information.
First, greater transparency can lead to early disclosure of time-variant information. This can
happen around major events such as seasoned equity issues (SEOs) or cross-listings, during
which a big chunk of information about future events is revealed. Thus when future events
actually happen, there is less “surprise” and hence less additional information to be incorporated
in the stock price, resulting in a higher return synchronicity.
3
While the positive effect of greater
transparency on return synchronicity is most significant in the case of a one-time lumpy
disclosure, we show that it also holds in the more general setting with regular, early disclosure of
information. In particular, we show that in a dynamic setting, if at the beginning of every period,
outsiders get to know (one period ahead of time) some of the information that otherwise would
come out at the end of the period, the return synchronicity is actually higher.
The second channel through which greater transparency increases stock return
synchronicity is due to learning about time-invariant firm-specific characteristics, such as
managerial quality. In particular, better disclosure allows market participants to learn about time-
invariant firm fundamentals with greater precision (e.g., in the extreme case where the
2
Strictly speaking all firm characteristics are time varying in the very long run. Here we refer to those
characteristics that do not change frequently or do not change much over time (so that they do not affect valuation
significantly) as “time-invariant.”
3
Shiller (1981) notes theoretically that if dividend news arrives in a lumpy and infrequent way, stock price volatility
becomes lower. If much of the dividend news reflects firm specific information, one would also expect return
synchronicity to become higher.
4

fundaments are completely known, there is no new learning). Therefore, with more disclosure,
the priors about these fundamentals will be revised less drastically as new information comes in.
As a result, there will be less firm-specific variation in stock prices, i.e., the return synchronicity
will be higher.
We present three pieces of empirical evidence consistent with our model’s predictions.
We first provide evidence of learning about time-invariant firm-specific information. The idea is
that, as a firm becomes older, the market learns more about its time-invariant characteristics, e.g.,
the firm’s intrinsic quality. Therefore, return synchronicity should be higher for older firms,
since more of the (time-invariant) firm-specific information is already reflected in the stock
price. This prediction is strongly supported by the data.
Second and third, we exploit the fact that the effect of greater transparency on stock
return synchronicity is likely to be especially clear when the disclosure is “lumpy”, in the sense
that the market receives a big chunk of information relevant for future cash flows. Therefore, we
focus on seasoned equity offerings (SEOs) and cross-listings in the U.S.
4
It is well known that
both events are associated with significant amounts of information disclosure and market
scrutiny (see, e.g., Almazan et al. (2002) for SEO, and Lang et al. (2003) for ADR listings). Our
model suggests a dynamic response of return synchronicity to an improvement in the information
environment. At the time when new information is disclosed and impounded into stock prices,
the firm-specific return variation will increase, as suggested by conventional wisdom. However,
since a big chunk of relevant information is already reflected in stock prices, we would expect
the firm-specific return variation of SEO and cross-listed firms to be subsequently lower. This
dynamic response of the firm-specific return variation around seasoned equity issues and cross-
4
While firms can list their shares in the U.S. exchanges either through ADRs or through direct listings, the literature
sometimes uses the two terms “cross listings” and “ADR listings” interchangeably (see, e.g., Lang, Lins, and Miller
(2003)). In the rest of this paper, we follow this convention, except when we discuss our sample.
5

Citations
More filters
Journal ArticleDOI
TL;DR: In this paper, the authors examine the benefits foreign firms gain from cross-listing shares on a major U.S. exchange and show that the difference in abnormal return behavior is not a result of unobservable disparities in firm characteristics between cross-listed firms and firms without a secondary listing.
Abstract: This paper examines the benefits foreign firms gain from cross-listing shares on a major U.S. exchange. I study sovereign credit rating changes in 49 countries to investigate whether secondary listings in the U.S. are associated with improvements in a firm’s information environment. I document that firms without a cross-listing experience significantly negative abnormal returns around negative sovereign rating events, while foreign firms with secondary listings on major U.S. exchanges on average experience no significant surprise reaction. I show that these events are value-relevant for cross-listed firms and that the difference in abnormal return behavior is not a result of unobservable disparities in firm characteristics between cross-listed firms and firms without a secondary listing. Several proxies for the amount of (private) information incorporated in U.S. share prices are determinants of abnormal return behavior for cross-listed firms around sovereign rating announcements. Ownership of cross-listed U.S. shares by more informed investors similarly reduces price sensitivity to these events for cross-listed firms. In addition, I examine the lead-lag relationship between returns of cross-listed U.S. shares and the underlying home market shares and document information spillovers from the U.S. to the home market shares in the period prior to a sovereign rating announcement. These results provide an information based rather than corporate governance related explanation for the observed value premium of cross-listed firms.

4 citations


Cites background or methods from "Transparency, Price Informativeness..."

  • ...This measure was first introduced in the seminal paper by Roll (1988) and has subsequently been commonly used in the literature on stock price informativeness (Dasgupta et al., 2010; Durnev et al., 2004; Morck et al., 2000)....

    [...]

  • ...In addition, I construct a measure of how much private information is impounded into stock prices of ADR shares based on price synchronicity (Chen et al., 2007; Dasgupta et al., 2010)....

    [...]

Journal ArticleDOI
TL;DR: This paper found that when firms compete more for investors, they issue more guidance, especially capital expenditure forecasts, which increases liquidity and price efficiency, but the effects decrease as guidance serves more of an investor-seeking role.
Abstract: This paper documents a dual role for disclosure. In addition to the traditional role of alleviating information asymmetry, firms are motivated to disclose to attract limited investor resources and order flow away from other firms (Fishman and Hagerty, 1989). Higher competition for investors increases the incentive to disclose, but the resulting excessive disclosure implies diminishing marginal returns to disclosure. Consistent with this investor-seeking role for disclosure, we find that when firms compete more for investors, they issue more guidance, especially capital expenditure forecasts. The guidance increases liquidity and price efficiency, but the effects decrease as guidance serves more of an investor-seeking role.

4 citations

Journal Article
TL;DR: In this article, the authors make substantial contributions to the literature by providing new findings on the desirable and undesirable effects of recent regulations in Australia and the US in three separate studies, using a simulation technique, quantifying the size of capital buffers required to reduce system-wide losses of Australian banks.
Abstract: Financial stability is one of the main objectives of bank regulations globally. Over the past decades, several rules and policy measures have been implemented to mitigate the propagation of risks in the financial system. However, these regulations can have a multitude of effects at the bank and system-wide levels. The aim of this thesis is to enhance our understanding of bank regulations and their implications on the financial system. The thesis makes substantial contributions to the literature by providing new findings on the desirable and undesirable effects of recent regulations in Australia and the US in three separate studies. Using a simulation technique, the first study quantifies the size of capital buffers required to reduce system-wide losses of Australian banks. The results suggest that a moderate increase in bank capital buffers is sufficient to maintain financial system resilience, even after taking economic downturns into consideration. Furthermore, while banks benefit from paying a lower cost of debt when they have a higher capital buffer, lending volumes are lower indicating that credit supply may be hampered if bank capital levels are too high within a financial system. The second study presents a comprehensive assessment of the impacts of the Federal Reserve crisis liquidity programs using US bank holding company data. The main finding is that the liquidity programs were ex-ante efficient as they targeted illiquid banks with low core stable funding sources, and participants experienced an increase in liquidity creation and loan growth. However, there was a pervasive shift in bank risk taking that increased their stock return synchronicity following liquidity support. Most importantly, while there is strong evidence of an increase in loan supply by banks that accessed the programs that supported short-term funding, these banks are subject to greater stigma effect, and thus pose higher crash risk relative to other banks. The third study examines the effect of banning proprietary trading by banks (the Volcker Rule) on financial stability. There are three channels through which the Volcker Rule impacts bank-level and systemic risks: revenue diversification, bank similarity, and proprietary trading activity. While the reduction in proprietary trading lowers the directly targeted banks’ systemic risk, an unintended consequence is that greater similarity between banks increases the risk that they default at the same time and thus raises the probability of a systemic default. Banks that were not engaged in proprietary trading are also affected by the Volcker Rule through this similarity channel.

4 citations

Journal ArticleDOI
TL;DR: In this paper , the authors examined the association between various measures of earnings quality and stock return volatility of Johannesburg Stock Exchange (JSE)-listed companies for 10 years from 2009 to 2018.

4 citations

01 Jan 2010
TL;DR: In this paper, the authors investigate whether corporate insiders trade when asymmetric information is high, using data on U.S. corporate insider transactions between 1986 and 2012, and find that profits are significantly higher when insiders buy during periods of high relivol, but not when they sell shares.
Abstract: This paper investigates whether corporate insiders trade when asymmetric information is high, using data on U.S. corporate insider transactions between 1986 and 2012. The key innovation of this paper is our proxy for asymmetric information relivol which measures deviations of idiosyncratic volatility from a firm's normal level. Our findings indicate that relivol positively predicts insider purchases, which indicates that insiders buy shares when their informational advantage is high. However, insiders appear to sell less if relivol is high, which is consistent with existing evidence on sales being driven by alternative, non-information related trading motives such as liquidity or diversification needs. Further, we find that profits are significantly higher when insiders buy during periods of high relivol, but not when they sell shares.

4 citations


Cites background or methods from "Transparency, Price Informativeness..."

  • ...Dasgupta et al. (2010) document theoretically and empirically that price informativeness decreases with idiosyncratic volatility.8 A number of studies suggest that idiosyncratic volatility captures changes in asymmetric information in the time-series dimension (e.g., Dierkens (1991), Krishnaswami…...

    [...]

  • ...This relationship is corroborated by theoretical models (Glosten and Milgrom (1985)) and empirical evidence (French and Roll (1986))....

    [...]

References
More filters
Journal ArticleDOI
TL;DR: In this article, the authors identify five common risk factors in the returns on stocks and bonds, including three stock-market factors: an overall market factor and factors related to firm size and book-to-market equity.

24,874 citations


Additional excerpts

  • ...Here R 2 and β are estimated from a market model (equation (B-1)) in columns (1) and (2); from an industry-augmented market model in column (3); from the Fama and French (FF) (1993) 3-factor model and a 4-factor model with momentum (equations (B-2) and (B-3)) in columns (4) and (5)....

    [...]

Posted Content
TL;DR: The authors surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world, and presents a survey of the literature.
Abstract: This paper surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world.

13,489 citations


"Transparency, Price Informativeness..." refers background in this paper

  • ...For share prices to reflect information, arbitrageurs need to expend resources uncovering proprietary information about the firm (Grossman (1976), Shleifer and Vishny (1997))....

    [...]

Journal ArticleDOI
TL;DR: Corporate Governance as mentioned in this paper surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world, and shows that most advanced market economies have solved the problem of corporate governance at least reasonably well, in that they have assured the flows of enormous amounts of capital to firms, and actual repatriation of profits to the providers of finance.
Abstract: This article surveys research on corporate governance, with special attention to the importance of legal protection of investors and of ownership concentration in corporate governance systems around the world. CORPORATE GOVERNANCE DEALS WITH the ways in which suppliers of finance to corporations assure themselves of getting a return on their investment. How do the suppliers of finance get managers to return some of the profits to them? How do they make sure that managers do not steal the capital they supply or invest it in bad projects? How do suppliers of finance control managers? At first glance, it is not entirely obvious why the suppliers of capital get anything back. After all, they part with their money, and have little to contribute to the enterprise afterward. The professional managers or entrepreneurs who run the firms might as well abscond with the money. Although they sometimes do, usually they do not. Most advanced market economies have solved the problem of corporate governance at least reasonably well, in that they have assured the flows of enormous amounts of capital to firms, and actual repatriation of profits to the providers of finance. But this does not imply that they have solved the corporate governance problem perfectly, or that the corporate governance mechanisms cannot be improved. In fact, the subject of corporate governance is of enormous practical impor

10,954 citations

ReportDOI
TL;DR: In this article, the authors developed the efficient markets model in Section I to clarify some theoretical questions that may arise in connection with the inequality, and some similar inequalities will be derived that put limits on the standard deviation of the innovation in price and the variance of the change in price.
Abstract: This paper will develop the efficient markets model in Section I to clarify some theoretical questions that may arise in connection with the inequality (1) and some similar inequalities will be derived that put limits on the standard deviation of the innovation in price and the standard deviation of the change in price. The model is restated in innovation form which allows better understanding of the limits on stock price volatility imposed by the model. In particular, this will enable us to see (Section II) that the standard deviation of p is highest when information about dividends is revealed smoothly and that if information is revealed in big lumps occasionally the price series may have higher kurtosis (fatter tails) but will have lower variance. The notion expressed by some that earnings rather than dividend data should be used is discussed in Section III, and a way of assessing the importance of time variation in real discount rates is shown in Section IV. The inequalities are compared with the data in Section V.

2,805 citations

Posted Content
TL;DR: In this article, the authors examine the relation between the disclosure practices of firms, the number of analysts following each firm, and properties of the analysts' earnings forecasts and find that firms with more informative disclosure policies have a larger analyst following, more accurate analyst earnings forecasts, less dispersion among individual analyst forecasts and less volatility in forecast revisions.
Abstract: This paper examines the relation between the disclosure practices of firms, the number of analysts following each firm, and properties of the analysts' earnings forecasts. Using data from the Financial Analysts Federation Corporate Information Committee Report (FAF Report), we provide evidence that firms with more informative disclosure policies have a larger analyst following, more accurate analyst earnings forecasts, less dispersion among individual analyst forecasts and less volatility in forecast revisions. The results enhance our understanding of the role of analysts in capital markets. Further, they suggest that potential benefits to disclosure include increased investor following, reduced estimation risk and reduced information asymmetry, each of which have been shown to reduce a firm's cost of capital in theoretical research.

2,761 citations


"Transparency, Price Informativeness..." refers background in this paper

  • ...5Lang and Lundholm (1996) examine the relation between firms’ disclosure policies, analyst following, and the accuracy of analysts’ forecasts....

    [...]

Frequently Asked Questions (1)
Q1. What are the contributions in "Stock return synchronicity and the informativeness of stock prices: theory and evidence" ?

This paper argues that, contrary to the conventional wisdom, stock return synchronicity ( or R ) can increase when transparency improves. In a simple model, the authors show that, in more transparent environments, stock prices should be more informative about future events.