This article presents a Schumpeterian model where the engine of growth is in the microeconomic structure of the patent races. Under decreasing marginal productivity and endogenous entry in the R&D sector, the equilibrium is characterized by small firms investing too little and the growth process...

We introduce strategic interactions with quantity competition a` la Cournot and endogenous entry in an RBC model with homogenous goods. In the long run, the steady state mark up is decreasing in the capital share, in the discount factor and in the level of technology, while it is increasing in...