The question addressed in this paper is whether the gap in performance between the developed and developing worlds can continue, and in particular, whether developing nations can sustain the rapid growth they have experienced of late. The good news is that growth in the developing world should...

Large gaps in labor productivity between the traditional and modern parts of the economy are a fundamental reality of developing societies. In this paper, we document these gaps, and emphasize that labor flows from low-productivity activities to high-productivity activities are a key driver of...