The effect of stock price on discretionary disclosure

I examine the impact of exogenous changes in stock prices on voluntary disclosure. Specifically, I investigate whether stock price declines prompt managers to voluntarily disclose firm-value-related information (management forecasts) that was withheld prior to the decline because it was unfavorable but became favorable at a lower stock price. Consistent with my predictions, I find that managers are more likely to release good-news forecasts following larger stock price declines but that there is no association between the likelihood of releasing good-news forecasts and the magnitude of stock price increases. Additional evidence indicates that the good-news forecasts eventually conveyed by withholding firms after negative price shocks would likely have resulted in negative market reactions had they been released before the shocks. More generally, I provide evidence that managers withhold bad news and that exogenous stock price declines can induce its disclosure.     

The effect of enforcement on timely loss recognition: Evidence from insider trading laws

I use the first-time enforcement of insider trading laws in sixteen countries as a shock to enforcement and examine its influence on timely loss recognition (TLR). Consistent with greater enforcement increasing the usefulness of accounting information in contracts and thereby the demand for higher quality reporting, insider trading enforcement is associated with a significant increase in TLR. No such increase is detected in neighboring non-enforcing countries. In addition to documenting how shocks to enforcement influence financial reporting outcomes, this is also the first study to extend the Khan and Watts (2009) measure of accounting conservatism to a cross-country setting.     

Institutional stock trading on loan market information

One of the most important developments in the corporate loan market over the past decade has been the growing participation of institutional investors. As lenders, institutional investors routinely receive private information about borrowers. However, most of these investors also trade in public securities. This leads to a controversial question: Do institutional investors use private information acquired in the loan market to trade in public securities? This paper examines the stock trading of institutional investors whose portfolios also hold loans. Using the Securities and Exchange Commission filings of loan amendments, we identify institutional investors with access to private information disclosed during loan amendments. We then look at abnormal returns on subsequent stock trades. We find that institutional participants in loan renegotiations subsequently trade in the stock of the same company and outperform trades by other managers and trades in other stocks by approximately 5.4% in annualized terms.     

The effect of disclosure on the pay-performance relation

We examine whether greater transparency leads to improved evaluation and rewarding of management. We posit that disclosure improves board effectiveness at monitoring executives and in strengthening the link between pay and performance. We use management guidance as our empirical proxy for disclosure and document the following. We predict and find higher sensitivity of CEO compensation to performance (both accounting and stock returns) for firms that issue management guidance than for firms that do not. Our results are robust to multiple tests that address the potential endogeneity of management’s decision to issue guidance (using a Heckman self-selection model, employing a matched-sample approach, and identifying a subsample of firms in which increased disclosure is likely to be exogenous), tests that control for alternative explanations, and tests that use conference calls as an alternative disclosure metric.     

Influence of disclosure and governance on risk of US financial services firms following Sarbanes-Oxley

This study finds significant changes in capital market measures of risk following the passage of Sarbanes-Oxley for US financial services firms. Shorter-term measures of risk shifts are positive, on average, and consistent with the mandatory nature of the disclosure and governance provisions. Longer-term total and unsystematic risk shifts are negative, on average, and consistent with reductions in investor uncertainty as transparency improved. We find that the changes in shorter-term and longer-term risk measures vary inversely with the strength of disclosure and governance characteristics. The financial market rewarded (punished) firms with stronger (weaker) disclosure and stronger (weaker) governance.     

The effect of the Sarbanes-Oxley act on non-US companies cross-listed in the US

This paper uses a natural experiment to measure market response to the adoption of the Sarbanes–Oxley Act (ʽʽSOX"). Because SOX applies to all US public companies, US-based studies have difficulty separating the effects of contemporaneous events. However, controlled analysis is available: SOX applies to some cross-listed firms (those listed on level 2 or 3), but not to others (listed on level 1 or 4). By comparing reactions of SOX-exposed foreign firms to reactions of otherwise similar SOX-unexposed foreign firms, we can test investor beliefs about the costs and benefits of SOX in a way that is not cleanly available for US-based studies. We find that stock prices of foreign firms subject to SOX declined (increased) significantly, compared to cross-listed firms not subject to SOX and to non-cross-listed firms, during key announcements indicating that SOX would (would not) fully apply to cross-listed issuers. In cross-sectional tests, high-disclosing firms and firms from high-disclosing countries experienced the strongest declines, while faster-growing companies experienced weaker declines. This evidence is consistent with the view that investors expected the Sarbanes–Oxley Act to have a net negative effect on cross-listed foreign companies, with high-disclosing and low-growth companies suffering larger net costs, and faster-growing companies suffering smaller costs, particularly when they are located in poorly governed countries.     

The profitability of regression-based trading rules for the Shanghai stock market

This paper uses daily Shanghai A share data to evaluate the profitability of trading rules based on the predictability found in the return series. We find that the value of the trading-rule-based portfolio at the end of our sample is between 2 and 11 times that of an equity-buy-and-hold portfolio. We assess the robustness of the results in various ways: by carrying out various statistical tests, by varying the period over which the evaluation is carried out, by using a recursive estimation procedure for the forecasting equation, by incorporating transactions costs, and by considering weekly and monthly data.     

Consolidation, fragmentation, and the disclosure of trading information

It is commonly believed that fragmented security markets havea natural tendency to consolidate. This article examines thisbelief, focusing on the effect of disclosing trading informationto market participants. We show that large traders who placemultiple trades can benefit from the absence of trade disclosurein a fragmented market, as can dealers who face less price competitionthan in a unified market. Consequently, a fragmented marketneed not coalesce into a single market unless trade disclosureis mandatory. We also compare and contrast fragmented and consolidatedmarkets. Fragmentation results in higher price volatility andviolations of price efficiency.     

Divergence of sentiment and stock market trading

This paper introduces the concept of divergence of sentiment to the behavioral finance literature. We measure the distance between people with positive and negative sentiment on a daily basis for 20 countries by using data from status updates on Facebook. The prediction is that a higher divergence of sentiment leads to more diverging views on prospects and risks, and thus to more diverging views on the value of a stock. In line with this prediction, divergence of sentiment is positively related to trading volume. We further predict and find a positive relation between divergence of sentiment and stock price volatility. The observed relations are stronger when individual investors are more likely to trade. We compare the effect of our country-specific measures to a global measure of divergence of sentiment. We find that the separate effects of country-specific and global divergence measures depend on a country's level of market integration.     

Predictability of stock markets with disequilibrium trading

This paper analyses the predictability of a hypothetical market with freely negotiated prices on which exists a censoring of one-period returns which are in excess of an arbitrary level (‘floor’ and ‘ceiling’). It is shown that the expected value of returns (adjusted for drift) conditional on last period information regarding the censoring are equal to zero (and therefore the market is not predictable in mean) if there is no intertemporal spillover on the market. A simple simulation model is proposed and applied for the analysis of the effects of intertemporal and cross-spillovers resulting from quantity constraints. Statistical predictability tests are proposed, based on the corrected Student-t statistic of a regression of returns of some information concerning the previous censoring. An illustrative empirical analysis of six main time series of returns on the Warsaw Stock Exchange confirms their ex-ante, but not ex-post, predictability.     

The effects of information disclosure regulation on stock markets: Evidence from Vietnam

This paper investigates the effects of regulation pertaining to information disclosure on the Vietnam stock market. Using the event study methodology, we examine sectoral reactions, in terms of risk and return, following the announcements on information disclosure regulation in Vietnam. To validate the results, we also conduct several robustness tests such as the removal of firm-specific information and the use of a wide variety of ARCH models such as GARCH (1,1). We find evidence indicating that when the market anticipates a piece of regulation on information disclosure, most sectors experience negative reactions two and five days before the first announcement. Positive reactions are observed on the event date, as well as two and five days afterwards. Furthermore, we document a difference between the Ho Chi Minh Stock Exchange (HOSE) and the Hanoi Stock Exchange (HNX) in terms of market reaction. The results also show that the sectors experience changes in short-term systematic risk. Our contributions to the literature are threefold. First, we focus on a complete and more updated set of the Vietnam stock market’s information disclosure regulation. Second, our study examines the effects of a series of events on a single regulation at sectoral and firm levels in an emerging market. Third, in addition to sectoral analysis, we analyse the Vietnam stock market reaction at the firm level.     

The impact of Saturday trading on stock returns: Evidence from the Tokyo stock exchange January 1976 to January 1989

This paper examines the impact of TSE Saturday trading on daily TOPIX returns and TSE trading volume over the January 1976 to January 1989 period. Saturday trading is shown to have no significant impact on mean stock returns for the other days of the week. However, a significant shift in the pattern of Monday and Tuesday TOPIX returns is documented in the post-August 1986 period. This shift does not appear to be related to Saturday trading. TSE Saturday trading is found to have a significant impact on the variance of stock returns on surrounding days. In addition, trading volume is significantly lower on trading days surrounding Saturday trading. These findings are relevant to the timing of portfolio adjustment decisions.     

The effect of legislation on corporate disclosure practices

This article investigates the effect of the Financial Reporting Act of 1993 (FRA) on mandatory disclosure practices of companies listed on the New Zealand Exchange Limited. The FRA gave statutory backing to financial reporting standards in New Zealand and made non-compliance illegal. Using both univariate and multivariate analyses, we examine the association between (a) the levels of compliance with mandatory disclosure by the companies in our sample, and (b) disclosure regulatory regimes that prevailed in New Zealand before and after the implementation of the FRA. We find that mean corporate disclosure compliance levels in the periods after the enactment of the FRA are significantly higher than those in the periods before the enactment of the legislation. After controlling for the effects of other mandatory disclosure-related variables documented in prior studies, we also find that the improvement in corporate disclosure compliance behaviour is the result of the implementation of the FRA. Alternative specifications of the primary regression model indicate that those findings are robust.     

Impact of stock market trading on currency market volatility spillovers

This research aims to detect the volatility linkages among various currencies during operating and non-operating hours of three major stock markets (Tokyo, London and New York) by employing bivariate VAR-BEKK-GARCH model in selected currency pairs. In particular, the aim is to analyze whether the major stock markets have a differential impact on volatility linkages in currency markets. The results indicate that volatility linkages in intraday are far stronger then in daily results. One remarkable result is that rather than major currencies, some minor and exotic currencies play a leading role in volatility transmission during trading hours of major stock markets.     

Price formation on stock exchanges: the evolution of trading within the day

Prior analyses of prices of the NYSE and other exchanges findthat transitory price volatility is greater at the open of tradingthan at the close. We extend this line of research by using40 years of hourly Dow Jones 65 composite price index data toestimate transitory volatility throughout the trading day. Ourresults indicate that transitory volatility steadily declinesduring the trading day. We find a similar intraday decline intransitory volatility for a 2-year sample of the individualfirms in the Dow Jones 30 Industrials Index. The results areconsistent with the hypothesis that trading aids price formationand do not support the argument that particular trading mechanismsare the source of greater volatility at the open of trading.     

A theory of trading in stock index futures

It is demonstrated that markets in stock index futures or, moregenerally, in baskets of securities, provide a preferred tradingmedium for uniformed liquidity traders who wish to trade portfolios,because adverse selection costs are typically lower in thesemarkets than in markets for individual securities. Thus, anexplanation is provided for the immense liquidity and popularityof markets in stock index futures. Implications are also developedfor the effect of the introduction of a basket on market liquidityand the informativeness and variability of component securityprices, and for the price relationship between the basket andits underlying portfolio.     

The difference a day makes: Timely disclosure and trading efficiency in the muni market

The Real-Time Transaction Reporting System (RTRS) reduced the delay in reporting municipal bond trades from one-day to 15 min. We find a significant reduction in secondary market trading costs after the introduction of the RTRS. Our estimates imply that retail investors benefited primarily from reduced dealer intermediation costs, while large trades benefited from reductions in bargaining costs. Bonds experienced increases in trading volume across the liquidity spectrum. We find higher dealer capital commitment, longer intermediation chains, and fewer pre-arranged trades, all suggesting increased market-making incentives for dealers. These results are largely consistent with predictions from search-based models.     

The effect of disclosure committees on non-GAAP reporting quality

I examine whether company-implemented disclosure committees help to improve non-GAAP reporting quality. I find that firms with disclosure committees provide higher quality non-GAAP performance metrics and that the exclusions used to calculate their non-GAAP numbers are less persistent for future operating income and operating cash flows. Moreover, I find that firms with disclosure committees are less likely to receive SEC comment letters about non-GAAP disclosure. For firms that receive comment letters about non-GAAP reporting, disclosure committees can help to improve non-GAAP reporting quality. Comparing the influence of audit committees and disclosure committees, I find that audit committee financial experts have stronger monitoring effects than those on disclosure committees. Meanwhile, legal experts on disclosure committees provide similar monitoring compared to audit committees’ financial experts. Finally, the interaction between audit committee financial experts and disclosure committee legal experts produces the strongest effect on non-GAAP reporting quality. In sum, my analyses suggest that disclosure committees can provide important monitoring of non-GAAP reporting.     

美国萨班斯法案的执行成本

2001年,美国安然、世通、施乐等一些大型上市公司的财务欺诈案件,严重挫伤了投资者对资本市场的信心,政府监管部门的形象也受到很大影响,美国经济因此遭受严重打击。为了恢复投资者对资本市场的信心,重塑政府形象,提高上市公司的信息披露质量,美国国会修订出台了《萨班斯—奥克斯利法案》(以下简称SOX法案)。在SOX法案的众多条款中,对公司影响最大争论最多的是第404条款。针对SOX法案第404条款的意见主要有两种:一种意见认为,该条款对改善公司治理、防范风险、保护社会公众利益的积极性产生了积极作用;另一种意见认为,其执行成本和效率的矛盾、监管力度和市场平衡的矛盾所导致的实施中的困难也是现实存在的。那么究竟SOX法案实施多年后的今天,其执行成本如何?本文利用已有的经验数据对这一问题进行分析。