有因行为、无因行为之再思考——以行为之“原因”为突破点

The Reflection of Causal Behavior and Abstract Behavior——Focus on the Cause of the Behavior

德国法的原因理论以"原因"为核心概念:有因行为的原因实际上被意思表示理论中的效果意思所吸收,在判断法律行为效力方面,其应用价值已经不大;无因行为除了效果意思这个内部原因外,更以效果意思以外的、为其设立义务的基础行为为外部原因。无因行为的内部原因是其合法性依据,而外部原因是其合理性依据。无因性理论制造出"过程"与"结果"相分离的法律现象,又通过不当得利制度,将合法性与合理性再次统一。

Cause is the essential conception of the casue theory in German Law： the cause of the causal behavior ,which has been useless when judging the effectiveness of the legal behavior, has been absorbed into the effective meaning of the theory of meaning expression; abstract behavior has an internal cause that is its effective meaning and an external cause that is a fundamental behavior. The internal cause of the abstract behavior is a legal basis, while the external cause of it is a reasonable basis. The abstract principle bring about a legal phenomena in which the process is divided from the result. Unjust enrichment put the legal basis and the reasonable basis together.