title: Optimal migration policies: an analytical approach. Part I.
authors.forename: F
authors.initials: F
authors.lastname: Willekens
mesh_terms: D003710:Demography; D004641:Emigration and Immigration; D011153:Population; D011157:Population Dynamics; D011640:Public Policy
keywords: Demographic Factors; Migration; Migration Policy; Migration, Internal; Policy; Population; Population Dynamics; Population Policy; Social Policy; World