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Laurent Miclo
vol. 2363, mars 2025, p. 263–292sous la direction de Catherine Donati-Martin, Antoine Lejay et Alain Rouault, Springer Cham, vol. 2363, mars 2025, p. 263–292
Helmholtz decompositions break down any vector field into a sum of a gradient field and a divergence-free vector field. Such a result is extended to finite irreducible and reversible Markov processes, where vector fields correspond to anti-symmetric functions on the oriented edges of the underlying...
Stefan Ambec, Claude Crampes et Jean Tirole
n° 139, février 2025
This Policy Insight discusses the challenges facing the organisation of the electricity market through the lens of the EU’s market reform. Two goals that the electricity market should consider are discussed: first, ensuring the optimal dispatching of existing electricity generation at the lowest...
Matthieu Bouvard et Bruno Jullien
n° 25-1659, février 2025
We consider the price-cap regulation of a monopolistic network operator when the regulator has limited commitment. Operating the network requires xed investments and the regulator has the opportunity to unilaterally revise the price cap at random times. When the regulator maximizes consumer surplus...
Pascal Bégout et Jésus Ildefonso Diaz
vol. 472, février 2025
Marina Kontalexi, Alexandros Gelastopoulos et Pantelis Analytis
février 2025
Theoretical work on sequential choice and large-scale experiments in online ranking and voting systems has demonstrated that social influence can have a drastic impact on social and technological systems. Yet, the effect of social influence on online rating systems remains understudied and the few...
Alexandros Gelastopoulos, Pantelis Analytis, Gael Le Mens et Arnout van de Rijt
People are influenced by the choices of others, a phenomenon observed across contexts in the social and behavioral sciences. Social influence can lock in an initial popularity advantage of an option over a higher quality alternative. Yet several experiments designed to enable social influence have...
Andrew Rhodes, Jidong Zhou et Junjie Zhou
n° 25-1621, février 2025
This paper provides a framework in which a multiproduct ecosystem competes with many single-product firms in both price and innovation. The ecosystem is able to use data collected on one product to improve the quality of its other products. We study the impact of data regulation which either...
Claude Crampes et Antonio Estache
février 2025, p. 1–26
The paper makes the case for a systematic ex-ante assessment of the distributional impact of efficiency enhancing innovations regulatory sandboxes are expected to test. It shows how their prior formal modeling can inform on the possible need to control in the sandbox design for otherwise...
Ayden Higgins et Koen Jochmans
n° 25-1620, février 2025
Inference in linear panel data models is complicated by the presence of fixed effects when (some of) the regressors are not strictly exogenous. Under asymptotics where the number of cross-sectional observations and time periods grow at the same rate, the within-group estimator is consistent but its...
Jean-Paul Azam
n° 25-1619, février 2025
Confession was made compulsory in 1215 at the Lateran Council. Confessors became a kind of regulators, providing advice and inflicting fines, called “restitutions”. Peter Olivi created price theory in 1295 to show that their concepts of ‘just price’ and ‘usury’ were misconceived and harmful for the...
