手法を比較

	比較判例法分析	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	Late 19th–20th century (systematic comparative law from ~1900; case-focused comparative methodology consolidated ~1970s–1990s)	Late 19th century; formalised 1900
提唱者	Comparative law tradition (Zweigert, Kötz, MacCormick, Summers and others)	Gottfried Wilhelm Leibniz (early conceptualisation); Raymond Saleilles and Édouard Lambert (modern discipline, 1900 Paris Congress)
種類	Qualitative legal research method	Qualitative legal research method
原典	MacCormick, D. N., & Summers, R. S. (Eds.). (1991). Interpreting Statutes: A Comparative Study. Dartmouth. ISBN: 978-1855210264	Zweigert, K., & Kötz, H. (1998). An Introduction to Comparative Law (3rd ed., T. Weir, Trans.). Oxford University Press. ISBN: 978-0198268598
別名	cross-jurisdictional case analysis, comparative judicial analysis, transnational case law comparison, CCLA	comparative law, legal comparison, comparative jurisprudence, CLA
関連	6	6
概要	Comparative case law analysis is a qualitative legal research method that systematically examines and contrasts judicial decisions from two or more legal systems or jurisdictions. By placing rulings side by side, the method identifies convergences, divergences, and the underlying legal reasoning that shapes how courts address similar legal questions across different national or regional contexts.	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.