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Doh-Shin Jeon, Yassine Lefouili et Leonardo Madio
2026, à paraître
We study a platform’s incentives to remove IP-infringing products and the effects of holding the platform liable for such infringements on innovation and welfare. We first show that platform liability can lead to either higher or lower commission rates, depending on how screening affects...
Andreea Enache et Andrew Rhodes
We consider a setting in which a platform matches buyers and sellers, who then wish to transact with each other multiple times. The platform charges fees for hosting transactions but also offers convenience benefits. We consider two scenarios. In one scenario, all transactions must occur on the...
Andrew Rhodes et Jidong Zhou
Jean Tirole et Roland Bénabou
2026, 59 pages, à paraître
We analyze how private decisions and optimal public policies are shaped by personal and societal preferences, material incentives, and social norms. We show how honor and stigma interact with incentives and derive optimal taxation. We then analyze the expressive role of law as embodying society’s...
Sai Bravo-Melgarejo et Carole Haritchabalet
A labeling system for green gases, such as green hydrogen and bio-methane, could enable retailers to leverage consumers’ willingness to pay for environmental quality while promoting the adoption of these cleaner alternatives. However, the significant cost gap between green and conventional gases...
Fabrice Collard, Frédéric Boissay, Jordi Galì et Cristina Manea
Pierre Dubois et Gökçe Gökkoca
Antimicrobial resistance (AMR) increases healthcare costs, hospital stays, and mortality. This study examines how AMR affects antibiotic prescribing for cystitis in France (2002–2019), using data from general practitioners. A decision model is developed to capture prescribing behavior with and...
Christian Gollier
Because of risk aversion, any sensible investment valuation system should value less projects that contribute more to the aggregate risk. In theory, this is done by adjusting discount rates to consumption betas. But in reality, most public institutions use a dis-count rate that is rather...
David Martimort et Jérôme Pouyet
Pay-TV firms compete both downstream to attract viewers and upstream to acquire broadcasting rights. Because profits inherited from downstream competition satisfy a Convexity Property, allocating rights to the dominant firm maximizes the industry profit. Such an exclusive allocation of rights...
Ayden Higgins et Koen Jochmans
We consider the problem of identifying the parameters of a time-homogeneous bivariate Markov chain when only one of the two variables is observable. We show that, subject to conditions that we spell out, the transition kernel and the distribution of the initial condition are uniquely recoverable (...
