Horizontal inequalities, political environment, and civil conflict: evidence from 55 developing countries, 1986-2003

Gudrun Ostby

No 4193, Policy Research Working Paper Series from The World Bank

Abstract: Several studies of civil war have concluded that economic inequality between individuals does not increase the risk of internal armed conflict. This is perhaps not so surprising. Even though an individual may feel frustrated if he is poor compared with other individuals in society, he will not start a rebellion on his own. Civil wars are organized group conflicts, not a matter of individuals randomly committing violence against each other. Hence, we should not neglect the group aspect of human well-being and conflict. Systematic inequalities that coincide with ethnic, religious, or geographical cleavages in a country are often referred to as horizontal inequalities (or inter-group inequalities). Case studies of particular countries as well as some statistical studies have found that such inequalities between identity groups tend to be associated with a higher risk of internal conflict. But the emergence of violent group mobilization in a country with sharp horizontal inequalities may depend on the characteristics of the political regime. For example, in an autocracy, grievances that stem from group inequalities are likely to be large and frequent, but state repression may prevent them from being openly expressed. This paper investigates the relationship between horizontal inequalities, political environment, and civil war in developing countries. Based on national survey data from 55 countries it calculates welfare inequalities between ethnic, religious, and regional groups for each country using indicators such as household assets and educational levels. All the inequality measures, particularly regional inequality, are positively associated with higher risks of conflict outbreak. And it seems that the conflict potential of regional inequality is stronger for pure democratic and intermediate regimes than for pure autocratic regimes. Institutional arrangements also seem to matter. In fact it seems that the conflict potential of horizontal inequalities increases with more inclusive electoral systems. Finally, the presence of both regional inequalities and political exclusion of minority groups seems to make countries particularly at risk for conflict. The main policy implication of these findings is that the combination of politically and economically inclusive government is required to secure peace in developing countries.

Keywords: Population Policies; Social Conflict and Violence; Education and Society; Parliamentary Government; Services&Transfers to Poor (search for similar items in EconPapers)
Date: 2007-04-01
New Economics Papers: this item is included in nep-afr, nep-cdm, nep-dev and nep-pol
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Citations: View citations in EconPapers (2)

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