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Estimating the Dynamics of Mutual Fund Alphas and Betas

Review of Financial Studies 2008 21(1), 233-264 open access
This article develops a Kalman filter model to track dynamic mutual fund factor loadings. It then uses the estimates to analyze whether managers with market-timing ability can be identified ex ante. The primary findings are as follows: (i) Ordinary least squares (OLS) timing models produce false positives (nonzero alphas) at too high a rate with either daily or monthly data. In contrast, the Kalman filter model produces them at approximately the correct rate with monthly data; (ii) In monthly data, though the OLS models fail to detect any timing among fund managers, the Kalman filter does; (iii) The alpha and beta forecasts from the Kalman model are more accurate than those from the OLS timing models; (iv) The Kalman filter model tracks most fund alphas and betas better than OLS models that employ macroeconomic variables in addition to fund returns.

Default Risk, Shareholder Advantage, and Stock Returns

Review of Financial Studies 2008 21(6), 2743-2778
This paper examines the relationship between default probability and stock returns. Using the Expected Default Frequency (EDF) of Moody's KMV, we document that higher default probabilities are not associated with higher expected stock returns. Within a model of bargaining between equity holders and debt holders in default, we show that the relationship between default probability and equity return is (i) upward sloping for firms where shareholders can extract little benefit from renegotiation (low “shareholder advantage”) and (ii) humped and downward sloping for firms with high shareholder advantage. This dichotomy implies that distressed firms with stronger shareholder advantage should exhibit lower expected returns in the cross section. Our empirical evidence, based on several proxies for shareholder advantage, is consistent with the model's predictions.

Do local analysts know more? A cross-country study of the performance of local analysts and foreign analysts

Journal of Financial Economics 2008 88(3), 581-606
This paper examines whether analysts resident in a country make more precise earnings forecasts for firms in that country than non-resident analysts. Using a sample of 32 countries, we find an economically and statistically significant local analyst advantage even after controlling for firm and analyst characteristics. The local advantage is high in countries where earnings are smoothed more, less information is disclosed by firms, and firm idiosyncratic information explains a smaller fraction of stock returns. It is negatively related to whether a firm has foreign assets and to market participation by foreign investors and by institutions, and positively related to holdings by insiders. The extent to which U.S. investors underweight a country's stocks is positively related to that country's local analyst advantage.

International GAAP Differences: The Impact on Foreign Analysts

The Accounting Review 2008 83(3), 593-628
This paper investigates the relation between differences in accounting standards across countries and foreign analyst following and forecast accuracy. We develop two measures of differences in generally accepted accounting principles (GAAP) for 1,176 country-pairs. We then examine the impact of these measures of accounting differences on foreign analysts. In so doing, we utilize a unique database that identifies the location of financial analysts around the world, creating a sample that covers 6,888 foreign analysts making a total of 43,968 forecasts for 6,169 firms from 49 countries during 1998–2004. We find that the extent to which GAAP differs between two countries is negatively related to both foreign analyst following and forecast accuracy. Our results suggest that GAAP differences are associated with economic costs for financial analysts.

Controlling-minority shareholder incentive conflicts and directors’ and officers’ liability insurance: Evidence from China

Journal of Banking & Finance 2008 32(12), 2636-2645 open access
This paper examines the demand for directors’ and officers’ liability insurance (D&O insurance) by Chinese listed companies where controlling-minority shareholder incentive conflicts are acute due to the concentrated and split ownership structure. We hypothesize and find evidence that the incidence of seeking D&O insurance is positively related to the extent of controlling-minority shareholder incentive conflicts – a finding not previously documented in the literature. Using an event study, we find that the announcements of D&O insurance decisions in firms that engage in earnings management, and/or are controlled by a local government (such firms tend to have stronger incentives to tunnel), seem to have a negative wealth effect. In addition, the incidence of the D&O insurance decision is positively related to the proportion of independent directors and several litigation risk proxies. Therefore, the breakthrough in corporate governance and judicial reforms has created non-negligible perceived securities litigation risks in China.

Do Individual Investors Cause Post-Earnings Announcement Drift? Direct Evidence from Personal Trades

The Accounting Review 2008 83(6), 1521-1550
This study tests whether nai¨ve trading by individual investors, or some class of individual investors, causes post-earnings announcement drift (PEAD). Inconsistent with the individual trading hypothesis, individual investor trading fails to subsume any of the power of extreme earnings surprises to predict future abnormal returns. Moreover, individuals are significant net buyers after both negative and positive extreme earnings surprises, consistent with an attention effect, but not with their trades causing PEAD. Finally, we find no indication that trading by individuals explains the concentration of drift at subsequent earnings announcement dates.