任选性冲突法理论研究
The study of lehre vom fakultatives kollisionsrecht

德国的任选性冲突法理论，由弗雷斯纳提出，为德·波尔系统构建，主张重视当事人的"诉讼程序上的利益"，并以此为判断标准之一确定准据法，甚至将法院地法作为准据法来适用。该理论看似与传统国际私法理论中的最密切联系原则、法院地法原则等相互抵触，实则两者之间可以很好地相融互补，从而为完善和丰富中国涉外民商事司法实践提供理论支撑。
Lehre vom fakultatives Kollisionsrecht, put forward by A. Flessner and given a detailed description by Th. M. De Boer, regards that paying attention to procedural interest of the parties should be one of the yardsticks to affirm the applicable law, even applying lex fori. This theory seems to contradict the most significant relationship principle and the lex fori principle of traditional international private law theory. In fact, they can blend well and complement each other, and can provide theoretical support for improving and enriching China's foreign civil and commercial judicial practice.