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Justin Johnson, Andrew Rhodes et Matthijs Wildenbeest
vol. 91, n° 5, septembre 2023, p. 1841–1879
We investigate the ability of a platform to design its marketplace to promote competition, improve consumer surplus, and increase its own payoff. We consider demand‐steering rules that reward firms that cut prices with additional exposure to consumers. We examine the impact of these rules both in...
Malin Arve et David Martimort
n° 23-1469, septembre 2023, révision mai 2024
We consider a procurement auction for the provision of a basic service to which an add-on must later be appended. Potential providers are symmetric, have private information on their cost for the basic service and the winning firm must also implement the add-on. To finance cost-reducing activities...
Justina Klimaviciute et Pierre Pestieau
vol. 37, n° 4, septembre 2023, p. 1192–1213
With the rapid increase in long-term care (LTC) needs, it is important to assess the expected contributions of the traditional providers of LTC: the state, the market and the family. We first survey the literature devoted to the family and the market. Then, given the declining role of family...
Sylvain Chabé-Ferret, Philippe Le Coent, Valentin David-Legleye et Véronique Delannoy
vol. 50, n° 4, septembre 2023, p. 1401–1427
Payments for Environmental Services (PESs) are increasingly used to foster farmers’ adoption of greener practices, but their effectiveness is often undermined by low enrollment. In a large randomized field experiment (N = 20,000), we test several non-monetary incentives to increase enrollment into...
Michele Bisceglia
vol. 158, n° 104532, septembre 2023
Due to the switching behavior of online consumers, news outlets increasingly compete with each other to attract audience for each single news item they produce, rather than for complete editions of their newspapers: the so called unbundling of journalism. Using a standard Hotelling model, I show...
Sébastien Pouget et Daniel Kim
n° 23-1472, septembre 2023, révision novembre 2025
We empirically study whether carbon emissions affect firms’ cost of capital raised on conventional bond markets. We find that firms with higher carbon emissions face higher spreads in the secondary market but not in the primary market. We show that this gap is related to uncertainty about climate...
Claude Crampes et Antonio Estache
n° 23-1466, septembre 2023
The paper makes the case for a more systematic ex-ante assessment of the distribution of gains and losses from efficiency enhancing innovations that regulatory sandboxes are expected to test. It shows how a prior formal modelling of tests can inform the regulators on the possible need to control...
Doh-Shin Jeon, Yassine Lefouili, Yaxin Li et Timothy Simcoe
n° 23-1468, septembre 2023, révision janvier 2025
We develop a model of a device ecosystem to study how network structure affects demand, pricing, and output for the underlying products. Prices depend on each device's Katz-Bonacich centrality in a network defined by the demand-side externalities linking devices. We show how the relevant network...
Shangrong Chen, Sai Bravo Megarejo, Romain Mongeau et Estelle Malavolti
vol. 125, n° 106864, septembre 2023
This paper uses an evolutionary game theory approach to assess the diffusion of different hydrogen technologies in the air transport system. Our model is extended to consider uncertainty, as well as the impact of the “Flight Shame” movement and different policies such as subsidies or taxes. A...
Jean Tirole
vol. 15, septembre 2023, p. 573–605
Tech giants' dominance does not confront us with an unpalatable choice between laissez-faire and populist interventions. This article takes stock of available knowledge, considers desirable adaptations of regulation in the digital age, and draws some conclusions for policy reform.
