The Commitment to Development Index ranks 27 of the world’s richest countries on policies that affect more than five billion people living in poorer nations. How did your country do this year?
As waves of migrants have crossed the Mediterranean and the US Southwest border, development agencies have received a de facto mandate: to deter migration from poor countries. Will it work? Here we review the evidence on whether foreign aid has been directed toward these “root causes” in the past, whether it has deterred migration from poor countries, and whether it can do so.