Combatant recruitment and the outcome of war

Ahmed Saber Mahmud, Juan F. Vargas

Research output: Contribution to journalArticlepeer-review

Abstract

What determines who wins a civil war? We propose a simple model in which the power of each armed group depends on the number of combatants it is able to recruit. This is in turn a function of the relative 'distance' between the group leadership and potential recruits. We emphasize the moral hazard problem of recruitment: fighting is costly and risky so combatants have the incentive to defect from their task. They can also desert altogether and join the enemy. This incentive is stronger the farther away the fighter is from the principal, since monitoring becomes increasingly costly. Bigger armies have more power but less monitoring capacity to prevent defection and desertion. This general framework allows a variety of interpretations of what type of proximity matters for building strong cohesive armies ranging from ethnic distance to geographic dispersion. Different assumptions about the distribution of potential fighters along the relevant dimension of conflict lead to different equilibria. We characterize these, discuss the implied outcome in terms of who wins the war, and illustrate with historical and contemporaneous case studies.

Original languageEnglish (US)
Pages (from-to)51-74
Number of pages24
JournalEconomics of Governance
Volume12
Issue number1
DOIs
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Business and International Management
  • Economics, Econometrics and Finance(all)

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