This paper evaluates the recent trends in international migration and different viewpoints (arguments and counterarguments) on global population movement and examines the impacts of the social, economic, ecological, and political determinants of regional and international migration. The paper aims to analyse and compare the causal relationships between international migration, on the one hand, and economic, ecological, and socio-politic dimensions of EU countries’ development, on the other. The authors consider the impact power of the above-mentioned dimensions on the long-term net migration for the potential candidates to access the EU. First, it identifies and justifies the object of research as the EU countries and the potential EU candi...