About Me

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I am an economist and Wieler Family Associate Professor of Economics at Boston College in Chestnut Hill, MA, USA. My main fields of research are empirical industrial organization and antitrust.

For a complete list of my publications, visit my research page or view my CV . For a detailed description of my research, check out my research statement.

Current Research

Conformant and Efficient Estimation of Discrete Choice Demand Models (May 2023)
(with Paul Grieco, Joris Pinkse, Stephan Sagl)
Revisions requested from Econometrica
Julia Package documentation, or Pkg.add("Grumps") in Julia

Summary
  • We propose a likelihood based estimator for BLP-style demand models that natively incorporates multiple sources of data: “micro” data from individual purchases and aggregate data on shares and prices.

The Evolution of Market Power in the US Automobile Industry (July 2023)
(with Paul Grieco and Ali Yurukoglu)
Accepted for publication at The Quarterly Journal of Economics
Replication Package

Summary
  • We estimate a decrease in markups and a rise in consumer surplus in the US automobile market from 1980–2018. Production efficiencies and rising product quality are the main sources for the increase in consumer surplus, not changes in market concentration or changing preferences.

Price Discrimination in International Airline Markets
(with Gaurab Aryal and Jonathan W. Williams)
forthcoming at Review of Economic Studies
replicaiton package

Summary
  • We develop and estimate a model of dynamic pricing and price discrimination of a monopolist airline to quantify how consumers and firms split surplus.
  • Airlines achieve 77% of 1st-best welfare and most of the gap is due to private information by passengers, not airline uncertainty about future arriving passengers.

Inventory Management in Decentralized Markets (March 2023)
(with Fei Li, Can Tan, and Yiyi Zhou)
Accepted at International Economic Review

Summary
  • We present a model of an intermediary that faces search frictions in both the “retail” and “wholesale” market. In equilibrium, intermediaries hold and manage inventory.
  • We quantify the model and find that incentives for inventory management in the used car market come from search frictions, not inventory holding costs.

For a complete list of my publications, visit my research page.