Increasing numbers of migrants challenge policymakers worldwide.
Martin
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D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D005069:Evaluation Studies as Topic; D011153:Population; D011157:Population Dynamics; D011640:Public Policy; D014171:Transients and Migrants
Critique; Demographic Factors; Economic Development; Economic Factors; Immigrants; International Migration; Migrants; Migration; Migration Policy; Policy; Population; Population Dynamics; Population Policy; Social Policy; World