Knowledge that Transforms

Social interaction contributes to some traders' disposition effect. New data from an investment-specific social network linked to individual-level trading records builds evidence of this connection. To credibly estimate causal peer effects, I exploit the staggered entry of retail brokerages into partnerships with the social trading web platform and compare trader activity before and after exposure to these new social conditions. Access to the social network nearly doubles the magnitude of a trader's disposition effect. Traders connected in the network develop correlated levels of the disposition effect, a finding that can be replicated using workhorse data from a large discount brokerage.

We study government interventions in markets suffering from adverse selection. Importantly, asymmetric information prevents both the realization of gains from trade and the production of information that is valuable to other market participants. We find a fundamental tension in maximizing welfare: while some intervention is required to restore trading, too much intervention depletes trade of its informational content. We characterize the optimal policy that balances these two considerations, and explore how it depends on features of the environment. Our model can be used to study a program introduced in 2009 to restore information production in the market for legacy assets.

We study rating shopping on the MBS market. Outside of AAA, losses are higher on singlerated tranches than on multi-rated ones, and yields predict future losses for single-rated tranches, but not for multi-rated ones. Conversely, ratings have less explanatory power for single-rated tranches. These results suggest that single-rated tranches have been "shopped," whereby pessimistic ratings never reach the market. For AAA-rated MBS, by contrast, 93% receive two or three such ratings, and those ratings agree 97% of the time. This ratings convergence suggests that agencies "cater" to investors, who cannot purchase a tranche unless it has multiple AAA ratings.

This study examines the voting behavior of independent directors of public companies in China from 2004-2012. The unique data at the individual-director level overcome endogeneity in both board formation and proposal selection by allowing analysis based on within-board proposal variation. Career-conscious directors, measured by age and the director's reputation value, are more likely to dissent; dissension is eventually rewarded in the marketplace in the form of more outside directorships and a lower risk of regulatory sanctions. Director dissension improves corporate governance and market transparency primarily through the responses of stakeholders (shareholders, creditors, and regulators), to whom dissension disseminates information.

This paper highlights the importance of middle-class and high-FICO borrowers for the mortgage crisis. Contrary to popular belief, which focuses on subprime and poor borrowers, we show that mortgage originations increased for borrowers across all income levels and FICO scores. The relation between mortgage growth and income growth at the individual level remained positive throughout the pre-2007 period. Finally, middle-income, highincome, and prime borrowers all sharply increased their share of delinquencies in the crisis. These results are consistent with a demand-side view, where homebuyers and lenders bought into increasing house values and borrowers defaulted after prices dropped.

Using the staggered introduction of fast-track debt recovery courts in India, we estimate the causal effect of a reduction in debt contract enforcement costs on financing and asset maturity. A reduction in enforcement costs is associated with an increase in long-term debt and a decrease in short-term debt and trade credit. The increase in debt maturity is confined to firms that borrow from multiple lenders, have abnormally short debt maturity structures before the reform, and to smaller firms. Firms also reduce the number of banking relationships, and increase the proportion of long-term assets after the reform.

I empirically test whether firms engage in risk-shifting. Contrary to what risk-shifting theory predicts, I find that firms reduce investment risk when they approach financial distress. To identify the effect of distress on risk-taking, I use a natural experiment with exogenous changes to leverage. Risk reduction is most prevalent among firms that have shorter maturity debt, bank debt, and tighter bank loan financial covenants. These findings suggest that debt composition and financial covenants serve as important mechanisms to mitigate debt-equity agency conflicts, such as risk-shifting, that are not explicitly contracted on.

From 1998 to 2011, U.S. firms held more cash on average (but not at the median) than similar foreign firms (foreign twins) did. The average difference in cash holdings does not increase after 2008, and it is driven by highly R&D-intensive U.S. firms. Because there are almost no similarly R&D-intensive foreign firms, mean comparisons involving these U.S. firms are not reliable. Without these U.S. firms, neither U.S. multinational firms nor purely domestic U.S. firms hold more cash than their foreign twins do. Country characteristics have negligible explanatory power for differences in cash holdings between U.S. firms and their foreign twins.

This paper investigates financial attention using novel panel data on daily investor online account logins. We find support for selective attention to portfolio information. Account logins fall by 9.5% after market declines. Investors also pay less attention when the VIX volatility index is high. The level of attention and the attention/return correlation are strongly related to investor demographics (gender, age) and financial position (wealth, holdings). Using a new statistical decomposition, we show how aggregate and individual household trading are related to investor attention.

Share prices generally fall when a firm announces a seasoned equity offering (SEO). A standard explanation is that an SEO communicates negative information to investors. We show that if repeated capital market transactions are possible, this same asymmetry of information between firms and investors implies that some firms also repurchase shares in equilibrium. A subset of these firms directly profit from repurchases, while other firms repurchase in order to improve the terms of a subsequent SEO. The possibility of repurchases reduces both SEOs and investment. Overall, our analysis highlights the importance of analyzing SEOs and repurchases in a unified framework.