Description and travel 1 Description and travel -- 1 Developing countries 1 Developing countries -- 1 Economic conditions 1 Economic policy 1 Economic policy -- 1 more ... History -- 1 Income distribution -- 1 International cooperation 1 International economic integration -- 1 International economic relations -- 1 Politics and government 1 Politics and government -- 1 Revolutions -- 1 Social aspects 1 Social planning 1 Social policy 1 Social policy -- 1 less ...