We show that the Roy model has more precise predictions about the self-selection of migrants than previously realized. The same conditions that have been shown to result in positive or negative selection in terms of expected earnings also imply a stochastic dominance relationship between the...

This article analyzes whether foreign aid affects the net flows of refugees from recipient countries. Combining refugee data on 141 origin countries over the 1976-2013 period with bilateral Official Development Assistance data, we estimate the causal effects of a country’s aid receipts on both...

During 2022, about eight million Ukrainians were displaced from Ukraine due to the Russian invasion. Whether these individuals will return holds great significance for Ukraine's reconstruction and is pivotal in shaping integration strategies in host countries. We used Facebook ads to recruit a...