New growth models exhibit "scale effects," meaning that variations in the levels of key variables exert permanent influences on growth rates. Such predictions run counter to recent empirical evidence. In this paper we extend a general non-scale model to the open economy. With complete capital...

Recent diffusion models cannot explain why the success of technology diffusion depends so critically on developing countries’ human capital levels. This paper examines three main issues. First, we endogenize both appropriate technologies and human capital formation. Second, we refine the human...