Tasks Assigned to Missions in their Mandates (TAMM) provides comprehensive new data on the mandates of UN missions between 1948 and 2015. Until now, datasets have described mandates in terms of their influential characteristics, such as whether they are robust or multidimensional, or placed them into broad categories driven by idiosyncratic theoretical expectations. Despite limitations on data availability, mandates have been tied to numerous outcomes related to peacekeeping effectiveness. TAMM meets the need for flexible, minimally processed, and fine-grained data on mission mandates by recording the full range of tasks in mandates. The dataset comes in mission-resolution and mission-month versions that are designed to complement existing data on peacekeeping and to be easily adaptable to a wide range of research interests. In this article, I introduce TAMM and use the data to conduct a replication and expansion of Hultman, Kathman and Shannon (2014). I find evidence that missions with mandates that dictate they provide security guarantees and raise the costs of fighting, reduce battlefield hostilities.

任务分配给特派团的任务（TAMM）提供了有关1948年至2015年联合国特派团任务授权的全面新数据。到目前为止，数据集已根据其影响力特征（例如功能强大或多维或已放置任务）描述了任务授权根据特殊的理论期望将它们分为大类。尽管数据可用性受到限制，但任务已与维持和平效力相关的众多成果联系在一起。TAMM通过记录任务中的所有任务来满足对任务任务的灵活，最少处理和细粒度数据的需求。该数据集有特派团决议和特派团月份两个版本，旨在补充现有的维持和平数据，并易于适应广泛的研究兴趣。在本文中，我介绍了TAMM，并使用数据进行了Hultman，Kathman和Shannon（2014）的复制和扩展。我发现有证据表明，执行任务规定的特派团可以提供安全保障并提高战斗成本，减少战场上的敌对行动。