Lorenzo Magnolfi

I am an Assistant Professor in the Department of Economics at the University of Wisconsin-Madison.

I do research in empirical industrial organization and econometrics of games: see my research statement (updated: September, 2025) for a description of my research agenda.

Here is my CV.

Published Papers

1. The Competitive Conduct of Consumer Cooperatives (with M. Duarte and C. Roncoroni)
   RAND Journal of Economics, March 2025 [Preprint] [Video]

2. Triplet Embeddings for Demand Estimation (with J. McClure and A. Sorensen)
   American Economic Journal: Microeconomics, February 2025 [SSRN]
   📄Extended Abstract in Proceedings of the 23rd ACM Conference on Economics and Computation [EC’22].

3. Testing Firm Conduct (with M. Duarte, M. Sølvsten, and C. Sullivan)
   Quantitative Economics, July 2024 [arXiv]

4. The Rise of Urgent Care Centers (with C. Mommaerts, N. Serna, and C. Sullivan)
   Journal of Political Economy Microeconomics, May 2024 [Preprint]

5. Estimation of Discrete Games with Weak Assumptions on Information (with C. Roncoroni)
   Review of Economic Studies, July 2023 [Featured Article] [Preprint]
   🏆 Young Economists’ Essay Award (EARIE 2016), Young Economist Prize (JEI 2016)

6. Differentiated-Products Cournot Attributes Higher Markups Than Bertrand-Nash (with D. Quint, C. Sullivan, and S. Waldfogel)
   Economics Letters, October 2022 [Preprint]

7. A Comparison of Testing and Estimation of Firm Conduct (with C. Sullivan)
   Economics Letters, March 2022 [Preprint]

8. Regulatory Competition and the Market for Corporate Law (with O. Eldar)
   American Economic Journal: Microeconomics, May 2020 [SSRN]
   📰 Featured on Harvard Law School Forum on Corporate Governance

Working Papers

1. Estimation of Games under No Regret: Structural Econometrics for AI (with N. Lomys)
   R&R at Journal of Political Economy [SSRN] | NET Institute Working Paper #24-05
   📄Extended Abstract in Proceedings of the 26th ACM Conference on Economics and Computation [EC’25]

2. Conduct and Scale Economies: Evaluating Tariffs in the US Automobile Market (with M. Duarte, M. Sølvsten, D. Quint, and C. Sullivan) 🆕 R&R at American Economic Review

3. Learning Firm Conduct: Pass-Through as a Foundation for Instrument Relevance (with A. Dearing, D. Quint, C. Sullivan, and S. Waldfogel) [NBER Working Paper #32863]
   This paper supersedes Falsifying Models of Firm Conduct, with D. Quint, C. Sullivan, and S. Waldfogel.

4. Explaining Delaware’s Dominance: Firm Heterogeneity and Demand for Legal Flexibility (with O. Eldar)

5. Platform Switching Policies under Collusion: Unintended Consequences for Digital Platforms (with J. Higgins, D. Quint, and C. Sullivan)

6. Testing Information Ordering for Strategic Agents (with S. Han and H. Kaido) [arXiv]

7. An Equilibrium Model of Rollover Lotteries (with G. Compiani and L. Smith)

8. Political Connections and Market Structure (with C. Roncoroni)
   🏆 Public Utility Research Prize (IIOC 2017) Resting, for now

Work in Progress

1. Market Counterfactuals with Nonparametric Supply: An ML/AI Approach (with H. Chiang, J. Collison, and C. Sullivan) [slides]
   📄Extended abstract in Proceedings of the 26th ACM Conference on Economics and Computation [EC’25]

2. Robust Identification in Repeated Games: An Empirical Approach to Algorithmic Competition (with A. Cozzolino, C. Gualdani, I. Gufler, and N. Lomys)

3. Intermediaries and Market Competition in Health Insurance (joint N. Aizawa, Honglin Li, and C. Sullivan)

Software

• pyRVtest: Python Package for Testing Firm Conduct (with M. Duarte, M. Sølvsten, C. Sullivan, and A. Tarascina) [GitHub]

Contact

Email: magnolfi@wisc.edu

Office: Room 6426, 1180 Observatory Drive, Madison, WI 53706-1393