Knowledge that Transforms

We study the location-specific component of research productivity for economics and finance faculty over the last three decades. We find that there was a positive effect of being affiliated with a top 25 university in the 1970s; this effect weakened in the 1980s and disappeared in the 1990s. The decline in elite university fixed effect is due to the reduced importance of physical access to productive research colleagues, which in turn seems due to innovations in communication technology. One implication is that knowledge-based organizations should find it more difficult to capture rents vis-à-vis workers. We find that faculty salaries increased the most where the estimated spillover dropped the most. Despite the loss in local spillovers, elite universities still enjoy an edge in average productivity because of agglomeration of top researchers in prestigious institutions with high long-term research reputations.

We analyze a dynamic microstructure model in which a dealer market (DM) and a crossing network (CN) interact for three informational settings. A key result is that coexistence of trading systems generates systematic patterns in order flow, which depend on the degree of transparency. Further, we study overall welfare, measured by the gains from trade of all agents, and compare it with the maximum overall welfare. The discrepancy between both measures is attributable to two inefficiencies. Due to these inefficiencies, introducing a CN next to a DM, as well as increasing the transparency level, not necessarily produces greater overall welfare.

Theories such as Merton [1987. A simple model of capital market equilibrium with incomplete information. Journal of Finance 42, 483–510] predict a positive relation between idiosyncratic risk and expected return when investors do not diversify their portfolio. Ang, Hodrick, Xing, and Zhang [2006. The cross-section of volatility and expected returns. Journal of Finance 61, 259–299], however, find that monthly stock returns are negatively related to the one-month lagged idiosyncratic volatilities. I show that idiosyncratic volatilities are time-varying and thus, their findings should not be used to imply the relation between idiosyncratic risk and expected return. Using the exponential GARCH models to estimate expected idiosyncratic volatilities, I find a significantly positive relation between the estimated conditional idiosyncratic volatilities and expected returns. Further evidence suggests that Ang et al.'s findings are largely explained by the return reversal of a subset of small stocks with high idiosyncratic volatilities.

We show that country-level creditor rights influence dividend policies around the world by establishing the balance of power between debt and equity claimants. Creditors demand and managers consent to a more restrictive payout policy as a substitute for weak creditor rights in an effort to minimize the firm's agency costs of debt. Using a sample of 120,507 firm-years from 52 countries, we find that both the probability and amount of dividend payouts are significantly lower in countries with poor creditor rights. A reduction in the creditor rights index from its highest value to its lowest value implies a 41% reduction in the probability of paying a dividend, and a 60% reduction in dividend payout ratios. These results are robust to numerous control variables, sample variations, model specifications, and alternative hypotheses. We also show that the agency costs of debt play a more decisive role in determining dividend policies than the previously documented agency costs of equity. Overall, our findings contribute to the growing literature arguing that creditors exert significant influence over corporate decision-making outside of bankruptcy.

Almost one-third of actively managed, diversified U.S. equity mutual funds specify a size and value/growth benchmark index in the fund prospectus that does not match the fund's actual style. Nevertheless, these “mismatched” benchmarks matter to fund investors. Performance relative to the specified benchmark is a significant determinant of a fund's subsequent cash inflows, even controlling for performance measures that better capture the fund's style. These incremental flows appear unlikely to be rational responses to abnormal returns. The evidence is consistent with the notion that mismatched self-designated benchmarks result from strategic fund behavior driven by the incentive to improve flows.

We present novel empirical evidence that conflicts of interest between creditors and their borrowers have a significant impact on firm investment policy. We examine a large sample of private credit agreements between banks and public firms and find that 32% of the agreements contain an explicit restriction on the firm's capital expenditures. Creditors are more likely to impose a capital expenditure restriction as a borrower's credit quality deteriorates, and the use of a restriction appears at least as sensitive to borrower credit quality as other contractual terms, such as interest rates, collateral requirements, or the use of financial covenants. We find that capital expenditure restrictions cause a reduction in firm investment and that firms obtaining contracts with a new restriction experience subsequent increases in their market value and operating performance.

Miller [1977. Risk, uncertainty, and divergence of opinion. Journal of Finance 32, 1151–1168] hypothesizes that prices of stocks subject to high differences of opinion and short-sales constraints are biased upward. We expect earnings announcements to reduce differences of opinion among investors, and consequently, these announcements should reduce overvaluation. Using five distinct proxies for differences of opinion, we find that high differences of opinion stocks earn significantly lower returns around earnings announcements than low differences of opinion stocks. In addition, the returns on high differences of opinion stocks are more negative within the subsample of stocks that are most difficult for investors to sell short. These results are robust when we control for the size effect and the market-to-book effect and when we examine alternative explanations such as financial leverage, earnings announcement premium, post-earnings announcement drift, return momentum, and potential biases in analysts’ forecasts. Also consistent with Miller's theory, we find that stocks subject to high differences of opinion and more binding short-sales constraints have a price run-up just prior to earnings announcements that is followed by an even larger decline after the announcements.

We study the impact of “style investing” on the market for corporate control. We argue that the choice of the bidder is influenced by the fact that the merge with a firm that belongs to an investment style more popular with the market may boost the bidder's value. By using data on the flows in mutual funds, we construct a measure of popularity, which relies directly on the identification of sentiment-induced investor demand, rather than being a direct transformation of stock market data. We show that differences in popularity between bidder and target help to explain their pairing. The merger with a more popular target generates a halo effect from the target to the bidder that induces the market to evaluate the assets of the less popular bidder at the (inflated) market value of the more popular target. Both bidder and target premiums are positively related to the difference in popularity between the target and the bidder. However, the target's ability to appropriate the gain is reduced by the fact that its bargaining position is weaker when the bidder's potential for asset appreciation is higher. We document a better short- and medium-term performance of less popular firms taking over more popular firms. The bidder managers engaging in these cosmetic mergers take advantage of the window of opportunity induced by the deal to reduce their stake in the firm under convenient conditions.

This paper extends the literature on analyst optimism. Our analysis of a large sample of recommendations issued from 1995 through 2006 indicates that sell-side analysts are likely to assign frequent and favorable ratings to a stock after the analysts’ affiliated mutual funds invest in that stock. Controlling for a number of variables, including the ties between analysts and investment banks, we find that the greater the portfolio weight of a stock in the fund family, the more optimistic the stock ratings from affiliated analysts become. Since 2002, analysts’ optimism on stocks held by affiliated mutual funds has declined. However, an analyst's decision of upgrading a stock to a “strong buy” rating is still significantly associated with the portfolio weight of that stock in the fund family.

Recent work documents large positive abnormal returns when a hedge fund announces activist intentions regarding a publicly listed firm. We show that these returns are largely explained by the ability of activists to force target firms into a takeover. For a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006, announcement returns and long-term abnormal returns are high for targets that are ultimately acquired, but not detectably different from zero for firms that remain independent. Firms targeted by activists are more likely than control firms to get acquired. Finally, activist investors’ portfolios perform poorly during a period in which market wide takeover interest declined.