In the Debate Concerning Income Policies, the Relative Importance of Wage Rigidities Plays a Crucial Role. Implicitely Or Explicitely, Those Against Controls Emphasize the Cost of Their Implementation and Presuppose That There Will Be a Quick Reaction of Wages to Modifications in Labor Market...

A model of first price sealed bid auctions is developed where bidders meet repeatedly while independently drawing private valuations in each period.Attention is focused on symmetric collusive bidding equilibria when side-payments are not allowed.