Migration policy: from restriction to regulation.
D001208:Asia; D002681:China; D003710:Demography; D003906:Developing Countries; D004641:Emigration and Immigration; D005202:Asia, Eastern; D011153:Population; D011157:Population Dynamics; D011640:Public Policy
Asia; China; Demographic Factors; Developing Countries; Eastern Asia; Migration; Migration Policy--changes; Policy; Population; Population Dynamics; Population Policy; Rural-urban Migration; Social Policy