Which kind of intellectual property regime is more favorable to innovation: one that enforces patents or one that does not? Economic theory is unable to answer this question, as valid arguments can be made both for and against patents; hence we must turn to empirical evidence. In this paper, we...

We construct a competitive model of innovation and growth under constant returns to scale. Previous models of growth under constant returns cannot model technological innovation. Current models of endogenous innovation rely on the interplay between increasing returns and monopolistic markets. In...

In the modern theory of growth, monopoly plays a crucial role both as a cause and an effect of innovation. Innovative firms, it is argued, would have insufficient incentive to innovate should the prospect of monopoly power not be present. This theme of monopoly runs throughout the theory of...