Replication data for: Alliance Treaty Obligations and Provisions, 1815-1944

This article introduces the Alliance Treaty Obligations and Provisions (ATOP) dataset. We begin by describing the rationale for collecting the ATOP data, its scope, and some general coding rules for the project. Then we offer some descriptive statistics for phase one of the dataset, which covers the years 1815-1944, and reveal some interesting trends in alliance politics. Finally, we replicate a study of alliance formation originally conducted by Lai and Reiter (2000) to demonstrate the effect the use of ATOP data may have on past inferences about alliance politics.本文介绍了联盟条约义务与条款（Alliance Treaty Obligations and Provisions, ATOP）数据集。我们首先阐述了收集该数据集的理论动因、覆盖范围，以及本项目的若干通用编码规则。随后，我们针对该数据集第一阶段（涵盖1815年至1944年）提供描述性统计结果，并揭示了联盟政治领域的若干有趣趋势。最后，我们复现了Lai与Reiter（2000）最初开展的一项关于联盟形成的研究，以说明使用ATOP数据集可能会对既往有关联盟政治的推论产生何种影响。