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Manipulation-Robust Prediction

By Daniel Björkegren, Joshua E. Blumenstock, and Samsun Knight

American Economic Review

An increasing number of decisions are guided by machine learning algorithms. But when consequential decisions are encoded in algorithms, individuals may strategically alter their behavior to achieve desired outcomes. This paper develops an empirical ap...

Shifting Work Patterns with Generative AI

By Eleanor W. Dillon, Sonia Jaffe, Nicole Immorlica, and Christopher T. Stanton

American Economic Review: Insights

We present evidence from a field experiment across 66 firms and 7,137 knowledge workers. Workers were randomly selected to access a generative AI tool integrated into applications they already used at work for email, meetings, and writing. In the secon...

Monopolistic Data Dumping

By Kfir Eliaz and Ran Spiegler

American Economic Journal: Microeconomics

A profit-maximizing monopolist curates a database for users seek- ing to learn a parameter. There are two user types: "Nowcasters" wish to learn the parameter's current value, while "forecasters" target its long-run value. Data storage involves a const...

A Laboratory Test of Flow Trading

By Daniel Friedman, Yilin Li, and Kristian López Vargas

American Economic Journal: Microeconomics

Perceived shortcomings in the dominant asset market format, CDA, have provoked reform proposals including Flow, which features gradual trading. We report a laboratory experiment comparing formats in a simple single-asset private values environment. We ...

How Costly Are Cartels?

By Flavien Moreau and Ludovic Panon

American Economic Journal: Macroeconomics

We study the cost of cartels in an oligopoly model with het- erogeneous firms, endogenous markups, and collusion. Cartels can amplify or dampen misallocation, by charging supracompetitive markups and reallocating demand towards non-colluding firms. Usi...

Vertical Integration and Cream Skimming of Profitable Referrals: The Case of Hospital-Owned Skilled Nursing Facilities

By David Cutler, Leemore Dafny, David C. Grabowski, Steven Lee, and Christopher Ody

American Economic Journal: Economic Policy, May 2026

We examine whether vertical integration of hospitals and skilled nursing facilities (SNFs) could lessen competition by foreclosing rival SNFs' access to lucrative referrals. We find that it could: Among integrated providers, a 1 percent increase in SNF re...