feedpixel.com/ch/830 The countries with prevalence of immigration and the country with prevalence of emigration were defined. The developed countries (the USA, France, Canada, Sweden, Great Britain, etc.) Are interested in qualitative changes of migratory streams. For them that relative density of persons with a high educational level essentially prevailed in the general stream of the migrants coming to the country is important. In these countries very strict migratory laws operate. But, on the other hand, there are special programs which provide long stay in the country of highly skilled experts from among migrants.