Emigration and immigration -- 14 History 5 Immigrants -- 5 Economic aspects 4 Emigration and immigration 4 History -- 3 Race relations 3 more ... Chinese Americans -- 2 Ethnic relations 2 Government policy 2 Refugees -- 2 20th century 1 Aliens, Illegal -- 1 Chinese -- 1 Cities and towns -- 1 Citizenship -- 1 Congresses 1 Congresses -- 1 Creative ability -- 1 Economic aspects -- 1 Economic conditions 1 Ethnic relations -- 1 Forecasting 1 Foreign relations 1 Government policy -- 1 Illegal aliens -- 1 Intellectual capital -- 1 Legal status, laws, etc 1 Minorities -- 1 Municipal finance -- 1 less ...