Vol. 17(1): Replication Data for: From Within to Between Nations: Subnational Comparison Across Borders

Long a staple in the toolkit of American Politics, comparison among subnational territorial units has gained increasing currency in Comparative Politics. A growing portion of subnational research, especially in the monographic literature, compares subnational territorial units within different countries. This approach to comparison, which I term transnational comparison, has the potential to build on and extend the advantages of subnational comparison. Despite the additional challenges it poses, transnational comparison offers a variety of ways to incorporate and leverage variations between countries as well as within them. This article, drawing on exemplary studies from the literature on subnational regimes and beyond, outlines a typology of successful transnational comparative strategies. The choice among these strategies depends on their distinctive properties, on the substantive questions asked, and on the stage of a research program. All have contributed to advancing the study of politics beyond the limits of nation-centered comparison.次国家领土单元（subnational territorial units）间的比较研究，长期以来都是美国政治学（American Politics）研究工具箱中的核心组成部分，如今在比较政治学（Comparative Politics）领域的影响力与日俱增。越来越多的次国家研究——尤其是专题研究文献（monographic literature）中的相关成果——会对不同国家内部的次国家领土单元展开比较分析。这种被我命名为跨国比较（transnational comparison）的研究路径，有望依托并拓展次国家比较研究的固有优势。尽管该路径带来了额外的研究挑战，但跨国比较仍提供了多元途径，可整合并利用国家间以及国家内部的各类差异。本文依托次国家政体（subnational regimes）及其他相关领域文献中的典范性研究，梳理了成功跨国比较研究策略的类型学体系。研究者对这些策略的选择，取决于其各自的独特属性、所要解答的实质研究问题，以及研究项目所处的阶段。所有这些策略均推动政治学研究突破了以民族国家为中心的比较研究的局限。