We study product market competition between firm owners (principals) where workers (agents) decide on their efforts and, hence, on output levels. Two worker compensation schemes are compared: a piece rate compensation as a benchmark when workers' output performance is verifiable, and a...

The need for intra-firm incentive schemes allows remodeling the Cournot duopoly in wages (rather than in output levels). In both versions of the Cournot model, a cartel agreement is unstable. The new formulation, however, allows us to demonstrate that a collective wage agreement on minimum wages...