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为和平投保:指数型牲畜保险、干旱与冲突

Insuring Peace: Index-Based Livestock Insurance, Droughts, and Conflict
Quarterly Journal of Economics · 2026 · Kai Gehring、Paul Schaudt

中文摘要

我们提供了准实验证据,说明一种利用遥感技术的创新型市场化解决方案能够缓解干旱引发的冲突。干旱是非洲冲突的主要驱动因素,尤其体现在转场放牧的牧民与定居农民之间的冲突。指数型牲畜保险(IBLI)是在肯尼亚试点的一项计划,为受干旱影响的牧民提供自动化、预先性的赔付。结合2000—2020年间肯尼亚的降雨量变化与IBLI的交错(分批)推广,我们发现IBLI大幅减少了干旱引发的冲突。关键机制包括畜群规模的缩减,以及收入平滑与资产价格稳定,从而整体上降低了牧民面临的迁徙压力。我们的研究表明,市场化解决方案是缓解冲突的一条可规模化、具成本效益的路径,可与权力分享协议、制度改革等政治性解决方案形成互补。

Abstract

Abstract We provide quasi-experimental evidence of how an innovative market-based solution using remote-sensing technology can mitigate drought-induced conflict. Droughts are a major driver of conflict in Africa, particularly between transhumant pastoralists and sedentary farmers. Index-Based Livestock Insurance (IBLI), a program piloted in Kenya, provides automated, preemptive payouts to pastoralists affected by droughts. Combining variation in rainfall and the staggered rollout of IBLI in Kenya over 2000–2020, we find that IBLI strongly reduces drought-induced conflict. Key mechanisms include a reduction in herd sizes, as well as income smoothing and asset price stabilization, contributing to an overall reduced migratory pressure for pastoralists. Our study suggests that market-based solutions are a scalable, cost-effective pathway to mitigate conflict, complementing political solutions such as power-sharing agreements and institutional reforms.
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