We live in an age of global migration. The number of immigrants worldwide is large and growing. At the same time, public and political reactions against immigrants have grown in the US, the UK, Canada, and other traditional and non-traditional receiving nations. In response to this trend, this bookassembles an interdisciplinary group of scholars to better understand two dimensions of contemporary immigration policy a growing enforcement and restriction regime in receiving nations, and the subsequent effects on sending nations. It begins with three background chapters on immigration politics...