News Release

对全球移民的估计

Peer-Reviewed Publication

Proceedings of the National Academy of Sciences

Estimated Migration Flows for 2010-2015: The New Method (Left) Captures Flows More Fully than A

image: Estimated migration flows for 2010-2015: The new method (left) captures flows more fully than a previous method (right). view more 

Credit: Image courtesy of Jonathan J. Azose and Adrian E. Raftery.

根据来自联合国的数据估计配对国家之间的移民数量的一种方法提示，在自从1990年以来的每个5年时期里，全球人口的大约1.2%即至多8700万人移民，而全部移民的大约1/4代表了回到出生国的返回移民。

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Journal

Proceedings of the National Academy of Sciences

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