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A subtype of internal migration is the migration of immigrant groups –often called secondary or onward migration. Secondary migration is also used to refer to the migration of immigrants within the European Union.
The Harris–Todaro model, named after John R. Harris and Michael Todaro, is an economic model developed in 1970 and used in development economics and welfare economics to explain some of the issues concerning rural-urban migration.
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Wildebeest migrating in the Serengeti. Migration, in ecology, is the large-scale movement of members of a species to a different environment.Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type.
Map of members of the United Nations, an organization that has discussed and engaged in internationality. Internationality, or the international, is the concept of something involving more than a single country and may suggest interaction between or encompassing more than one nation, or generally beyond national boundaries.
The Migration Period (c. 300 to 600 AD), also known as the Barbarian Invasions, was a period in European history marked by large-scale migrations that saw the fall of the Western Roman Empire and subsequent settlement of its former territories by various tribes, and the establishment of the post-Roman kingdoms.
The International Refugee Organization (IRO) was an intergovernmental organization founded on 20 April 1946 to deal with the massive refugee problem created by World War II.
Robert Gilpin (/ ˈ ɡ ɪ l p ɪ n /; July 2, 1930 – June 20, 2018 [1] [2]) was an American political scientist.He was Professor of Politics and International Affairs at the Woodrow Wilson School of Public and International Affairs at Princeton University where he held the Eisenhower professorship.