NBER Publications by Jacob N. Shapiro

Most aid spending by governments seeking to rebuild social and political order is based on an opportunity-cost theory of distracting potential recruits. The logic is that gainfully employed young men are less likely to participate in political violence, implying a positive correlation between unemployment and violence in places with active insurgencies. We test that prediction on insurgencies in Iraq and the Philippines, using survey data on unemployment and two newly- available measures of insurgency: (1) attacks against government and allied forces; and (2) violence that kills civilians. Contrary to the opportunity-cost theory, we find a robust negative correlation between unemployment and attacks against government and allied forces and no significant relationship between unemployment a...

Rebuilding social and economic order in conflict and post-conflict areas will be critical for the United States and allied governments for the foreseeable future. Little empirical research has evaluated where, when, and how improving material conditions in conflict zones enhances social and economic order. We address this lacuna, developing and testing a theory of insurgency. Following the informal literature and US military doctrine, we model insurgency as a three-way contest between rebels seeking political change through violence, a government seeking to minimize violence through some combination of service provision and hard counterinsurgency, and civilians deciding whether to share information about insurgents with government forces. We test the model using new data from the Iraq war....