What became the post-War era's "less developed countries" (LDCs) varied enormously in their pre- modern or pre-industrial economic conditions. We hypothesize that if these countries are arrayed on a continuum of pre-industrial development such as that of the demographer Ester Boserup, countries...

We revisit the idea that colonized countries that were more (less) economically advanced in 1500 became poorer (richer, respectively) by the late 20th century. Using data on place of origin of today's country populations and the urbanization and population density measures used by Acemoglu et...