Some theory, some empirical work. I study a (too?) wide scope of topics, but a recurring theme of my both my empirical and theoretical research is the use of observational data to test comparative statics predictions of a model.
Works in Progress
Abstract. In a model with spillovers, consider the difference in the impact of a positive shock on average outcomes among the treated and untreated, or the marginal average effect of treatment among the treated with spillovers (MATTS). MATTS is positive if, and only if, the negated Jacobian inverse of the equilibrium system is a B-matrix by columns. This condition is also sufficient to answer traditional comparative statics questions. I also give several sufficient, and sometimes necessary, conditions on the noninverted Jacobian–which correspond to common modeling assumptions–under which its inverse is a B-matrix by columns. Sign restrictions on MATTS are testable because the sample difference-in-differences is an unbiased estimator for MATTS from a superpopulation perspective. I also show that MATTS generalizes the ATT and the ATE when interference, or spillovers, are present. I apply the results to oligopoly and contests.
The Role of Learning in Search with Statistical Discrimination
Publications
Streaming Stimulates the Live Concert Industry: Evidence from YouTube, International Journal of Industrial Organization, 85 (2022)
Comparative Statics and Heterogeneity, Economic Theory, 67(3) (2019): 665-702
A Strong Correspondence Principle for Smooth, Monotone Environments (with Chris Cornwell) Journal of Mathematical Economics , 77 (2018): 15-24
A Necessary and Sufficient Condition for a Unique Maximum with an Application to Potential Games Economics Letters, 161 (2017): 120-123
The Pill and Partnerships: The Impact of the Birth Control Pill on Cohabitation Journal of Population Economics, 25(1) (2012): 29-52
The Allocation of Merit Pay: A Case Study (with James Manley and Louise Laurence) Economics Bulletin, 31(2) (2011): 1549-1562
Residential Segregation and Black-White Intermarriage Economics Bulletin, 31(1) (2011): 722-738
Global Social Interactions with Sequential Binary Decisions: The Case of Marriage, Divorce, and Stigma (with Juergen Jung) The B.E. Journal of Theoretical Economics (Contributions), 10(1) (2010): Article 46