James Davies, Susanna Sandström, Anthony Shorrocks and Edward Wolff have recently introduced a report on the world distribution of wealth. [The World Distribution of Household Wealth (PDF)]The headline finding of this study is that 2% of the world’s population own most of the world’s private wealth. This report doesn’t focus on immigration. However, if we compare the maps in this report with those of net immigration, it is pretty clear that it is a subset of the wealthier countries that are the destinations of immigration. What is also clear from the report on wealth is that countries like Japan with lower levels of immigration have higher levels of wealth per capita than the US -and less overall wealth inequality.