Research

Working Papers and Work in Progress:

When Are Echo Chambers Useful?
(with Christoph Schottmüller)
Accepted subject to minor revisions, RAND Journal of Economics
Discussed on Stumbling and Mumbling and Marginal Revolution
First version August 2018, last updated January 2026. [Supplementary Material]

Political Debate on Social Media: Theory and Evidence
(with Christoph Schottmüller)
R&R, Economic Journal
First version October 2023, last updated October 2025.

Manufactured Ignorance: Strategic Fragmentation in Competitive News Markets
(with Christoph Schottmüller)
First version July 2025, last updated June 2026.

Connecting the Dots: Markets for Data
(with Christoph Schottmüller)
Paper coming soon – presented at HU Berlin, Linz, Bielefeld, EWMES 2024.

Is Beauty Contagious? How Higher-Order Uncertainty Can Drive Asset Prices
First version December 2013, last updated February 2018.

Published Papers:

An Equivalence Between Rational Inattention Problems and Complete-Information Conformity Games
(with Pavel Ilinov)
Economics Letters [214] May 2022. [Preprint]

Regime change games with an active defender
(with Christoph Schottmüller)
Games and Economic Behavior [129: 96-113] September 2021. [Preprint]
(Supersedes earlier working paper “How Jeremy Bentham would defend against self-fulfilling attacks”)

Optimal Test Allocation
(with Jeff Ely, Andrea Galeotti and Jakub Steiner)
Journal of Economic Theory [193] April 2021. [Preprint]

An Informational Theory of Privacy
(with Christoph Schottmüller)
Economic Journal [130: 93-124] January 2020. [Preprint] [Supplementary Material]

The Evolution of Social Learning and its Economic Consequences
(with Benjamin Bossan and Peter Hammerstein)
Journal of Economic Behavior and Organization [112: 266-288] April 2015.

Correlated Equilibria in homogeneous good Bertrand competition
(with Christoph Schottmüller)
Journal of Mathematical Economics [57: 31-37] March 2015. [Preprint]