3111 3115 3246 3502 3538 3650 3748 3749 4469 4946 5257 5649 5851 8039 demography demography/population emigration ethics general immigration methodology moralphilosophy philosophy politicalscience publicpolicy sc911000 sce41000 scw38000 scx17000 scx22045 scx22060 scx22070 scx22100 scx22140 scx22170 scx24000 scx25000 socialpolicy socialsciences sociology sociologyofreligion suco41176