手法を比較

	比較法ドグマティック法学研究	比較法分析 ― 諸法域を横断する法比較
分野	フィールド調査法	フィールド調査法
系統	Process / pipeline	Process / pipeline
提唱年	19th century origins; modern systematic form 1960s–1998	Late 19th century; formalised 1900
提唱者	Rooted in classical comparative law (Anselm von Feuerbach, early 19th c.); systematised by Zweigert & Kötz (1998)	Gottfried Wilhelm Leibniz (early conceptualisation); Raymond Saleilles and Édouard Lambert (modern discipline, 1900 Paris Congress)
種類	Qualitative legal research design	Qualitative legal research method
原典	Zweigert, K., & Kötz, H. (1998). An Introduction to Comparative Law (3rd ed., T. Weir, Trans.). Oxford University Press. ISBN: 978-0198268598	Zweigert, K., & Kötz, H. (1998). An Introduction to Comparative Law (3rd ed., T. Weir, Trans.). Oxford University Press. ISBN: 978-0198268598
別名	comparative-doctrinal method, cross-jurisdictional doctrinal analysis, comparative black-letter law research, CDLR	comparative law, legal comparison, comparative jurisprudence, CLA
関連	6	6
概要	Comparative doctrinal legal research systematically identifies, expounds, and compares the legal rules, principles, and doctrines governing the same problem across two or more jurisdictions. It combines the internal rigour of doctrinal analysis — mapping the authoritative sources of a single legal system — with the external perspective of comparative law, asking whether different legal systems solve the same social problem in similar or divergent ways and why.	Comparative legal analysis is a structured research method that examines how two or more legal systems — whether national, regional, or supranational — address a common legal problem. By placing rules, doctrines, and judicial decisions side by side, researchers identify convergences, divergences, and the underlying societal, historical, and political forces that shape legal solutions. The method is foundational to law reform, harmonisation efforts, treaty drafting, and academic legal scholarship.