Government policy History 13 Population policy 10 Social conditions 10 Birth control 8 Family size 7 Politics and government 7 more ... Emigration and immigration 5 Political aspects 5 Economic conditions 4 Ethnic relations 4 Population 4 Rural development 4 Social policy 4 Women 4 Womyn 4 Agriculture and state 3 Economic aspects 3 Economic policy 3 Foreign relations 3 Grain trade 3 International relations 3 Social aspects 3 Chinese 2 Chinese Americans 2 Civil rights 2 Commercial policy 2 Emigration and immigration law 2 Family planning 2 Government business enterprises 2 less ...