Emigration and immigration Immigrants 54 Government policy 43 Social conditions 31 Social aspects 28 History 21 Political aspects 18 more ... Ethnic relations 13 Transnationalism 12 Cultural assimilation 10 Noncitizens 10 Migrations 9 Political activity 9 Economic aspects 8 Psychological aspects 8 Emigration and immigration law 7 Mexicans 7 Refugees 7 Children of immigrants 6 Economic conditions 6 Return migration 6 Citizenship 5 Education 5 Ethnicity 5 Group identity 5 Welfare state 5 Assimilation (Sociology) 4 Emigrant remittances 4 Family relationships 4 Foreign workers 4 less ...