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The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.

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The author examines the question of who gains and who loses from international migration. He attempts to show that "on the basis of generally accepted assumptions, some definite propositions concerning international migration can be rigorously and unambiguously established for the countries of origin and destination as well as for both countries taken together and hence...for the world as a whole." In general economic terms, the author concludes that both sending and receiving countries benefit from such migration.

No abstract