V. M. Struycken, A. Keywords: State contracts | Foreign direct investment | Lex fori | International arbitration | Public international law | International economic relations | International Centre for Settlement of Investment Disputes | Mots clefs: ABSTRACT Starting with an overview of international economic relations and foreign investments, this course aims to understand State contracts and international arbitration. It shows reflection on two main points that are essential to State contracts in private international law: the la…