Contractual obligations in private international law

The objective of this Master's thesis is to analyze the rules of law governing contractual obligations in private international law. First, the relevant sources of law and their concrete application are examined through descriptive and analytical method. The thesis is then focusing on two specific phenomena that have significantly influenced the development of the field in the last few decades. The first one is a gradual process of unification taking place at the legislation level. The second one is called "new lex mercatoria" and represents a non-sate source of rules governing contractual obligations with a cross-border element. Both of the phenomena are analyzed from both theoretical and practical point of view. The thesis is divided in five chapters and the analysis progresses from a general to a more specific level. The first chapter focuses on the legal definitions indispensable for a more detailed analysis provided in the following chapters. In order to better contextualize the rules governing contractual relationships in the international private law, the second chapter is dedicated to its historical evolution. Moreover, the chapter introduces and compares methods regulating contractual relationships in the international private law, while acknowledging the specific circumstances of their creation...