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Olivier Jean Blanchard, Christian Gollier, and Jean Tirole
vol. 15, September 2023, pp. 689–722
Climate change poses an existential threat. Theoretical and empirical research suggest that carbon pricing and green R&D support are the right tools, but their implementation can be improved. Other policies, such as standards, bans, and targeted subsidies, also all have a role to play, but they...
Léo Fitouchi, and Manvir Singh
vol. 44, n. 5, September 2023, pp. 502–514
Fines, corporal punishments, and other procedures of punitive justice recur across small-scale societies. Although they are often assumed to enforce group norms, we here propose the relation-restoration hypothesis of punitive justice, according to which punitive procedures function to restore...
Piret Avila, and Laurent Lehmann
vol. 573, n. 111598, September 2023
The cost of germline maintenance gives rise to a trade-off between lowering the deleterious mutation rate and investing in life history functions. Therefore, life history and the mutation rate coevolve, but this coevolution is not well understood. We develop a mathematical model to analyse the...
Marc Ivaldi, and Connie Lee
vol. 3, n. 113608, September 2023
Shangrong Chen, Sai Bravo Megarejo, Romain Mongeau, and Estelle Malavolti
vol. 125, n. 106864, September 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...
Marc Ivaldi, and Emil Palikot
September 2023, pp. 221–231
Using data collected from one of the most popular ridesharing platforms, we illustrate how mobility has changed after the exit from the Covid-19 induced confinement. We measure the impact of the Covid-19 outbreak on the level of mobility and the price of ridesharing. Finally, we show that the...
Elias Albagli, Christian Hellwig, and Aleh Tsyvinski
vol. 113, n. 9, September 2023, pp. 2323–2354
We analyze the consequences of noisy information aggregation for investment. Market imperfections create endogenous rents that cause overinvestment in upside risks and underinvestment in downside risks. In partial equilibrium, these inefficiencies are particularly severe if upside risks are coupled...
Justin Johnson, Andrew Rhodes, and Matthijs Wildenbeest
vol. 91, n. 5, September 2023, pp. 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...
James K. Hammitt
vol. 32, n. 9, September 2023, pp. 1964–1981
Justina Klimaviciute, and Pierre Pestieau
vol. 37, n. 4, September 2023, pp. 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...
