涉外契約與私法自治——契約自由原則與當事人意思自主原則

國際私法與實體法都是規範私法法律關係，皆適用於民商事件，用以處理私紛爭，而私法法律關係奉「私法自治原則」圭臬，因此國際私法與實體法有著共同之存立基礎，即「私法自治原則」，使得國際私法與實體法為雖為兩個不同層次與性質之法律體系，不但二者互動密切，更有著共同之存立基礎。本文分從涉外契約中實體權利義務之內容、準據法條款、國際合意管轄條款、仲裁協議及各自立基之基礎，並分析各自立基基礎之根源，即「私法自治原則」，體現「私法自治原則」作為支配私法體系之最重要地位。

It is no doubt that private international law and substantive law are different legal systems. But, the relationship between these two different legal systems is more complex. Private international law and substantive law both have the same foundation of“autonomy of private law”. There are three aspects in autonomy of private law: Firstly, parties may choose the applicable law of their contract. Secondly, parties to a dispute arising from their contract may select the forum to adjudicate. Finally, parties to a dispute arising from their contract at present or in the future may enter into an arbitration agreement. This article analyzes autonomy of private law in international contract.