| Abstract: | International migration is a vast, complex, and heterogeneous field of study. It requires not only knowledge about dynamic processes in the past and at present and in various regions of the world, but also interdisciplinary cooperation, not least in order to achieve a good theoretical development. Theories about international migration tend to be built on particular periods or regions. The test of these theories comes through comparative research. A comparison of North American and European immigration and immigration policy could examine 1) whether immigration is permanent or temporary, 2) the desire of Europeans for short-term immigration to allow the integration of the large numbers of immigrants from the recent past, 3) the differential development of welfare states, 4) the likely long-term outcome of large waves of immigration, and 5) the legal status of aliens. |
