Guy Michaels, Ferdinand Rauch, Stephen Redding, 03 January 2009

This column says that the two central stylised facts of population growth – Gibrat's Law and Zipf’s Law – do not hold in a wider sample of rural and urban areas. Analysis using new data that describe population patterns in both urban and rural areas suggests that populations experience a divide, as the dense grow and the sparse depopulate.


CEPR Policy Research