In the postal sector, the net cost of universal service depends on the content of the service, the postal market characteristics and the country’s geographical configuration. These three groups of factors affect both the direct cost of providing the service and the extent of competition on the...

This article studies the behavior of the …rm when it is searching to …ll a vacancy. The principal hypothesis is that the …rm can o¤er two kinds of contracts to the workers, short-term or long-term contracts. The short-term contract is like a probationary stage in which the …rm can learn...

Cet article explore le rôle de la demande de travail des personnes âgées dans l’analyse des politiques de retraite et de préretraite. Plus précisément, nous utilisons les travaux de Lazear(1979) pour étudier le profil des salaires optimal au cours d’une carrière et l’âge de la...

In a repeated interaction between and a principal and two agents with inter-agents externalities and asymmetric information, we show that optimal decentralization within the organization is limited to the first period and across agents.