Using surveys and administrative data from post-war Liberia, the hypothesis that peacekeeping deployments build peace"from the bottom up"through contributions to local security and local economic and social vitality was tested. The hypothesis reflects official thinking about how peacekeeping works via"peacebuilding."A quasi-experiment was created by applying coarsened exact matching to administrative data used in mission planning, identifying sets of communities that were similarly likely to receive peacekeeping bases. The analysis finds nothing to support claims that deployments increase local security and finds only modest effects on economic or social vitality. Nongovernmental organizations tend to work in areas where deployments are not present, contrary to the hypothesis. Thus, it is less likely that peacekeepers build peace from the bottom up, leaving mechanisms such as signaling and deterrence at the level of leaders as worthy of more attention. For policy, peacekeeping missions should reevaluate their methods for providing local security.

中文翻译：

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脆弱国家的维和与发展：来自利比里亚的微观证据

使用战后利比里亚的调查和行政数据，检验了维和部署通过对当地安全和当地经济和社会活力的贡献“自下而上”建设和平的假设。该假设反映了官方对如何通过“建设和平”进行维和的思考。通过将粗化精确匹配应用于任务规划中使用的行政数据，确定了类似可能接受维和基地的社区集，创建了一个准实验。分析发现没有任何证据支持部署增加当地安全的说法，并且发现对经济或社会活力的影响不大。与假设相反，非政府组织倾向于在没有部署的地区工作。因此，维和人员自下而上建设和平的可能性较小，因此领导人一级的信号和威慑等机制值得更多关注。在政策方面，维和特派团应重新评估其提供当地安全的方法。