It is well known that migration law often imposes restrictions which severely in uence entitlement and access to social security bene ts for migrant workers. However, in the wake of new social problems created by economic globalization, new patterns of migration, and political pressures - and in an effort to make sure that countries treat each other's subjects equally and that rights to bene ts are maintained - an increasing number of countries today have entered into bilateral and multilateral social security agreements with a basis in human rights. A network of such agreements is now starting to extend over the entire globe.