Research on the notion of ayant cause in the contemporary french law

2019 Fiscal Year Final Research Report

• Project/Area Number: 19K20851
• Project/Area Number (Other): 18H05646 (2018)
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund (2019); Single-year Grants (2018)
• Review Section: 0105:Law and related fields
• Research Institution: Okayama University (2019); The University of Tokyo (2018)
• Principal Investigator: SHIMAZU Gen 岡山大学, 社会文化科学研究科, 講師 (70823392)
• Project Period (FY): 2018-08-24 – 2020-03-31
• Keywords: ayant cause / 承継人

Outline of Final Research Achievements

This research aims to clarify the meaning of the french-concept "ayant cause". There seems to be a confusion between the concept of ayant cause and that of successor. For example, a creditor doesn't receive any rights nor obligation from the debtor. But in french law, the creditor is regarded as ayant cause of the debtor.
Whether the creditor can be satisfied depends on acts of the debtor on the patrimoine. The relations of that kind of interest may not seem to be a legal relations. But in French law, they are conceived as legal relations.

Free Research Field

民法

Academic Significance and Societal Importance of the Research Achievements

フランス法におけるayant cause概念は、特に時効援用権者の範囲画定基準を検討する際に重要な意義を果たす。
例えば旧民法において、時効が完成した当事者のayant causeは、当該当事者に代わって時効を援用することができるとされていた（証拠編97条1項）。この規定は現在の民法においては失われてしまったがその影響は未だ残存している。従って、ayant cause概念は重要な参照軸となるだろう。