This paper investigates the effect of U.S. border enforcement on the net flow of Mexican undocumented migration. It shows how this effect is theoretically ambiguous, given that increases in border controls deter prospective migrants from crossing the border illegally, but lengthen the duration...

Most labor scarce overseas countries moved decisively to restrict their immigration during the first third of the 20th century. This autarchic retreat from unrestricted and even publiclysubsidized immigration in the first global century before World War I to the quotas and bans introduced...

Im Zusammenhang mit der globalen ökonomischen Öffnung der Welt entfaltet sich heute zunehmend der Typ des "Migrationsstaats", der neben Kapital und Gütern auch Menschen zulässt und deren Auswahl nach bestimmten Kriterien zu optimieren versucht (Kapital, Qualifikation, Demografie, Bindung zum...