This chapter contains concluding remarks. Instead of summarizing the models and ideas presented so far,

I will end with a brief discussion of what we have learned from the models and analyses presented in this book and how they offer a useful perspective on world growth and cross-country income differences. I will then provide a very quick overview of some of the many remaining questions, which are important to emphasize both as a measure of our ignorance and as potential topics for future research.

24.1.