International migration in Western Europe since 1973: developments, mechanisms and controls

"This presentation describes the development of migration to and from Western Europe and seeks to determine to what extent such immigration and return migration movements are influenced by governmental action and regulation." It is observed that the basic factors determining immigration and return migration flows are the characteristics of the migrants themselves, policies of the receiving countries, and economic conditions in the sending and receiving countries. Data comparing alien populations and migration trends in selected European countries are provided