A REVIEW OF NEW THEORIES IN MIGRATION

Migration is the permanent movement of some people called migrant, from one place to another for some reasons and values. Their migration is determined by some values and goals that lead to changes in migrants’ interaction system. In human history the shape of migration was changed due to social and environmental changes. From the eve of 19 century migration became important social phenomena.  Researchers and scientists always try to understand the trends and rules of social phenomena that migration as an influential phenomenon in individual and social life is so important for them. A lot of theories about migration were presented in last decades. In this paper some of these theories are discussed and we focused on newer ones. esented.