History 117 Social conditions 87 Economic conditions 56 Social aspects 54 Political violence 32 Violence 30 Economic aspects 28 Politics and government 28 City planning 26 Law and legislation 24 Women 24 Economic development 23 Peace-building 22 Regional planning 19 Urbanization 17 Economic policy 16 Government policy 16 Forced migration 15 Management 15 Environmental aspects 14 Land tenure 14 Rural development 14 Commerce 13 Finance 13 Peasants 13 Research 13 Youth 13 Cities and towns 12 Drug traffic 12 Finance, Public 12