情势变更的效力研究——对《民法典》第533条的解读

Research on the Effect of Rebus Sic Stantibus—Interpretation on Article 533 of the Civil Code

摘要: 关于情势变更的效力，既有研究认为第一性效力是变更，第二性效力是解除。在适用上，变更优先，解除次之。无论是从比较法的角度还是从法律解释的角度均可对该顺位加以论证。《民法典》第533条新增有关重新协商的规定，打破了情势变更原有的效力体系。第一性效力转而变为重新协商。重新协商成功与否直接关系到变更和解除的效力。

Abstract: Regarding the effect of Rebus Sic Stantibus, existed studies believe that the primary effect is change and the secondary effect is termination. In terms of application, change takes precedence, followed by termination. Whether it is from the perspective of comparative law or from the perspective of legal interpretation, the order can be demonstrated. Article 533 of the Civil Code added the new provision of renegotiation, breaking the original effective system of Rebus Sic Stantibus. The pri-mary effect turned into renegotiation. The success of the renegotiation is directly related to the ef-fectiveness of the change and termination.