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...

This paper uses historical census data from Burkina Faso to characterize local demographic pressures associated with internal migration into river valleys after onchocerciasis eradication, combined with a new survey of village elders to document change over time and differences across villages...