We compare four methodologies to estimate the global distribution of income and find that many methods work well, but the method based on two-parameter distributions is more accurate than other methods. This method is simpler, easier to implement and relies on a more internationally-comparable...

In Asia inequality in income between countries is more important than inequality within countries. In Africa, Latin America, and western Europe and North America, by contrast, there are only small differences between countries; inequality within countries is more important. And when countries...