Jean Tirole

TL;DR: This article developed a theory of collective beliefs and motivated cognitions, including those concerning money (consumption) and happiness, as well as religion, to explain why most people feel such a need to believe in a "just world" and why this need, and therefore the prevalence of the belief, varies considerably across countries.

TL;DR: In this article, the authors build a theory of prosocial behaviour that combines heterogeneity in individual altruism and greed with concerns for social reputation or self-respect, and analyse the equilibrium contracts offered by sponsors.

TL;DR: In this article, the authors argue that transaction costs need not interfere with optimal contracting, provided that agents can probabilistically forecast their possible future payoffs (even if other aspects of the state of the nature cannot be forecast).

TL;DR: In this paper, the authors develop a model of unregulated competition between interconnected networks and analyze the mature and transition phases of the industry in this deregulated environ-ment, showing that a competitive equilibrium may fail to exist for large access charges or for large network substitutability, and that freely negotiated access charges may prevent effective competition in the mature phase and erect barriers to entry in the transition toward competition.

TL;DR: In this article, the authors analyze platforms in two-sided markets with network externalities, using the specific context of a payment card association, and study the cooperative determination of the interchange fee by member banks.