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Philippe Gagnepain et David Martimort
n° 25-1631, mars 2025
We explore empirically the impact of the market sharing collusive practices that were implemented in the French public transportation industry between 1994 and 1999. We build a structural model of bidding markets where innovating firms compete for the market and have the ability to spread the...
Matthew Adler, Maddalena Ferranna, James K. Hammitt, Eugénie de Laubier et Nicolas Treich
n° 25-1630, mars 2025
The fair innings principle states that fairness requires allocating life-saving treatments to younger rather than older patients when each would gain the same extension in longevity. It is motivated by the notion that older patients have already benefited from a longer life and so have less claim...
Wei Lu et Daniel L. Chen
vol. 20(3), n° e0318790., mars 2025
This study explores politically motivated reasoning among U.S. Circuit Court judges over the past 120 years, examining their writing style and use of previous case citations in judicial opinions. Employing natural language processing and supervised machine learn- ing, we scrutinize how judges’...
Stéphane Caprice et Shiva Shekhar
n° 25-1629, mars 2025
In this paper, we study supplier encroachment in competition with multi-product retailers and its effects on retail profits under endoge-nous consumer shopping behavior. We find that supplier encroach-ment (weakly) increases both supplier and retailer profits, as the re-tailer benefits from better...
Violeta I. Haas, Konstantin Bogatyrev, Tarik Abou-Chadi, Heike Klüver et Lukas F. Stoetzer
n° 25-1628, mars 2025
Do strategies of state-sponsored homophobia translate into electoral gains?While a growing body of literature documents the increasing politicization of LGBTQ- and gender-related issues by illiberal elites, little is known about the electoral effects of these strategies. We address this important...
Aviad Heifetz et Jorge Peña
n° 25-1627, mars 2025
In the standard continuous-time choice-taking gradient dynamics in smooth two-player games, each player implicitly assumes that their opponent momentarily main-tains their last choice. Contrastingly, in the utility-taking gradient dynamics each player implicitly assumes that their opponent...
Helmuth Cremer et Firouz Gahvari
n° 25-1626, mars 2025
This study contributes to the long-term care policy literature by exploring how, in an uncertain environment, redistributive tax policies and long-term care program design interact with informal care incentives, shaping long-term caregiving outcomes. The analysis is done within an overlapping-...
David Martimort, Jean-Christophe Poudou et Lionel Thomas
n° 25-1625, mars 2025, révision octobre 2025
A buyer (the principal) procures a good or service from a risk-neutral seller (the agent). The seller, protected by limited liability, has private information on his marginal cost of production (adverse selection), and exerts a non-verifiable effort that increases surplus (moral hazard). Even when...
Alexandros Gelastopoulos et Gael Le Mens
n° 25-1624, mars 2025
The disjunction effect (DE) refers to an empirical violation of the Sure-Thing Principle (STP), which states that if a person is willing to take an action independently of the outcome of some event, then they must be willing to do so even when the outcome of the event is unknown. A standard...
Viktor Stojkoski et César Hidalgo
n° 24-1623, mars 2025
Efforts to apply economic complexity to identify diversification opportunities often rely on diagrams comparing the relatedness and complexity of products, technologies, or industries. Yet, the use of these diagrams, is not based on empirical or theoretical evidence supporting some notion of...
