This paper considers a model of two interconnected networks with different qualities. There are call externalities in the sense that consumers value calls they send and receive. Networks compete in two part tariffs. We show that call externalities create private incentives for each competitor to...

We consider a large population of agents choosing either to engage in a criminal activity or working. Individuals feel varying degrees of selfreproach if they commit criminal acts. In addition, they are concerned with their social status in society, based on others’ perceptions of their...

In this paper, we study the impact of a merger on collusion depending on the endowment of capital asset among firms. We show that the merger makes the collusion easier to sustain when asymmetric capital stock combines with less efficient insiders because of more symmetric conditions and closer...

Patent pools are cooperative agreements between several patent owners to bundle the sale of their respective licenses. In this paper we analyze their consequences on the speed of the innovation process. We adopt an ex ante perspective and study the impact of possible pool formation on the...

The ‘ratchet effect’ refers to a situation where a principal uses private information that is revealed by an agent’s early actions to the agent’s later disadvantage, in a context where binding multi-period contracts are not enforceable. In a simple, context-rich environment, we...

We study and compare two frameworks: a model of influence, and command games. In the influence model, in which players are to make a certain acceptance/rejection decision, due to influence of other players, the decision of a player may be different from his inclination. We study a relation...

Male and female choices differ in many economic situations, e.g., on the labor market. This paper considers whether such differences are driven by different attitudes towards competition. In our experiment subjects choose between a tournament and a piece-rate pay scheme before performing a real...

In this paper, we analyze group incentives when a proportion of agents feel in- equity aversion as defined by Fehr and Schmidt (1999). We define a separating equilibrium that explains the co-existence of multiple payment schemes in firms. We show that a tournament provides strong incentives to...

Le taux de préférence pour le présent est un facteur important qui conditionne la durée des épisodes de chômage. Les transitions du chômage sont analysées par l’estimation d’un modèle à hasard proportionnel à temps discret avec trois sorties à risques concurrents : contrat à...

When a deficit occurs in the funding of collective goods, it is usually covered by raising the amount of taxes or by rationing the supply of the goods. This article compares the efficiency of these institutions. We report the results of a 2x2 experiment based on a game in the first stage of...