Oil Wealth, Winning Coalitions, and Duration of Civil Wars

New research has begun to underscore the complicated relationship between democratic institutions and the duration of civil wars. Specifically, greater constraints placed on executives often lead to considerably longer civil wars as leaders are limited in how they bargain with dissidents. This presents a puzzle as democracies are often seen as credible negotiators in international disputes. This article suggests that the size of the government’s winning coalition represents a doubleedged sword. Larger winning coalitions allow governments to bargain more credibly but also place constraints on what governments can offer since peace agreements may alienate coalition members. Fortunately, future access to postwar oil wealth provides the feasibility for the governments to compensate hard-liners who may lose out on any settlement, making them more likely to allow concessions to rebels. This combined credibility of large winning coalitions and the feasibility provided by oil wealth allows for peace agreements, therefore shortening the duration of civil wars. We test these propositions by examining the conditional relationship between oil wealth and coalition size on the duration of all civil wars between 1950 and 2009.