The actual distribution of world income across countries is extremely unequal, much higher than the within country inequality faced by most countries. The question studied in this paper is: How do international policies on aid, trade, and factor movements affect the international distribution of income?… In brief, there is a contradiction in international policies where aid's equality-enhancing effect is somewhat offset by protectionism.
From a new working paper by World Bank chief economist Francois Bourguignon, Victoria Levin, and David Rosenlatt.
Also, the most recent issue of the Journal of World Systems Research is out. It includes papers on global income disparities since 1800 and a review of the economics literature on the world distribution of income and income inequality.