Publications:

Nonparametric Estimates of Demand in the California Health Insurance Exchange

with Pietro Tebaldi and Alexander Torgovitsky.  Econometrica, (2023)

What Determines Consumer Financial Distress? Place- and Person-Based Factors

with Benjamin Keys and Neale Mahoney.  Review of Financial Studies, (2023)

Recovering Investor Expectations from Demand for Index Funds

with Mark Egan and Alexander MacKay.  Review of Economic Studies, (2022)

Working Papers:

What Determines 401(k) Plan Fees? A Dynamic Model of Transaction Costs and Markups

2025 WFA Two Sigma Best Paper on Investment Management 

What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences

with Mark Egan and Alexander MacKay, R&R Review of Financial Studies

Older Working Papers:

Socioeconomic Network Heterogeneity and Pandemic Policy Response

with Mohammad Akbarpour, Cody Cook, Aude Marzuoli, Simon Mongey, Abhishek Nagaraj, Matteo Saccarola, Pietro Tebaldi, and Shoshana Vasserman