In this paper, we try to explain the ambiguous impact of the Raffarin law on the relationships between manufacturers and retailers. We show that the law has two conflicting effects on the share of profit between upstream and downstream firms. We study the influence of a capacity constraint on...

This paper analyses statistically the competitive examination called « concours d?'agrégation », that enables to become professor of economics in a French University. The period of observation is 1985-2001. We show that as time passes the sucessful candidates become younger and the proportion...