History 90 Social conditions 66 Social aspects 36 Economic conditions 34 Political violence 23 Economic aspects 20 Politics and government 20 plus ... Violence 20 Women 19 Land tenure 13 Peace-building 13 Economic policy 12 Forced migration 12 Management 12 Urbanization 12 City planning 11 Economic development 11 Commerce 10 Law and legislation 10 Rural conditions 10 Government policy 9 Peasants 9 Small business 9 Drug traffic 8 Railroads 8 Regional planning 8 Rural development 8 Social life and customs 8 Sustainable development 8 Youth 8 moins ...