I am a financial economist with theoretical and empirical research interests.
Industrial Organization, Finance, and Corporate Governance
Suppose you own shares of all firms in the same industry. Would you push these firms to compete extra hard with each other? Do you think real-world institutional investors do?
"Anti-Competitive Effects of Common Ownership" (with José Azar and Isabel Tecu) shows that common ownership of natural competitors by diversified asset managers causes higher product prices. Here is a note detailing a mechanism. Here is a paper by Einer Elhauge on legal implications.
"Financing Payouts" (with Joan Farre-Mensa and Roni Michaely) shows that a large fraction of dividends and repurchases are financed with simultaneous securities issuances. [R&R at the Journal of Financial Economics]
"Unionization, Cash, and Leverage" uses a regression discontinuity to identify the causal effect of unionization on firms' financial policies.
"Optimal Security Design with Disagreement" (with Juan Ortner) predicts the optimality of debt, pooling, tranching, and convertibles, based on the assumption that issuers / entrepreneurs are more optimistic than their financiers.
Bayesian Learning in Financial Economics
"Revealing Downturns" (with Sergey Zhuk) explains theoretically why investors learn more about firm value in bad times, and shows empirically that earnings response coefficients increase in downturns. Negatively skewed stock returns and conditional volatility are a direct consequence of Bayesian parameter learning. [Online Appendix] [R&R (3rd round) at the Review of Financial Studies]
"Performance Measurement with Uncertain Risk Loadings" (with Francesco Franzoni) shows that rational investors who are uncertain about the risk exposure of projects learn more about projects' value, and therefore reallocate more capital across projects, in times with moderate factor realizations, compared to times with more extreme factor realizations. The flow-performance relation in the mutual funds sector exhibits the predicted non-monotonic pattern. [On the Fall 2013 NBER Asset Pricing program. R&R at the Review of Financial Studies.]
"Up Close It Feels Dangerous: Anxiety in the Face of Risk" (with Thomas Eisenbach) describes the behavior of an agent that is more risk-averse for imminent than for distant risks, derives asset pricing implications, and outlines institutional responses. [R&R at the Journal of Financial Economics]
"Anxiety, Overconfidence, and Excessive Risk Taking" (with Thomas Eisenbach) shows that dynamically inconsistent risk preferences, combined with a possibility to forget, imply overconfidence and excessive risk-taking. [Featured on Seeking Alpha]
"Asset Pricing with Horizon-dependent Risk Aversion" (with Marianne Andries and Thomas Eisenbach) develops solution techniques for multi-period general equilibrium asset pricing models with dynamically inconsistent risk preferences. The model's predictions for the term structure of risk premia in equity markets and the market for volatility risk find support in the data. [On the Fall 2014 NBER Asset Pricing program]
"The Term Structure of the Price of Variance Risk" (with Marianne Andries, Thomas Eisenbach, and Yichuan Wang) estimates an option pricing model to show that the price of variance risk -- not only its quantity -- decreases with maturity. This finding helps distinguish between alternative asset pricing models.