This paper constructs an analytically tractable model of endogenous innovation with a special focus on the effects of barriers to entry, namely patents. Conventional models of endogenous growth rely on the existence and enforcement of intellectual property rights with patents. Those legal rights...

This paper aims to provide a theoretical explanation for understanding the cross-country disparity of long-run economic growth rates based on the diversity in the initial conditions. In particular, it argues that the disparity in the inequality of human capital and income, as well as the...