This doctoral thesis explores the impact of socioeconomic behaviour and foreign policy changes by international law on economic growth factors. The study investigates the ways in which changes in socioeconomic behaviour and foreign policy can affect economic growth, and the role that international law plays in shaping these factors. The research methodology involved a comprehensive review of literature in the field, as well as the analysis of relevant case studies. The findings of this research demonstrate that socioeconomic behaviour and foreign policy changes can have significant impacts on economic growth factors, including productivity, innovation, investment, trade, and employment. International law plays a crucial role in shaping these factors by providing a framework for economic cooperation, promoting stability and predictability, and resolving conflicts. This thesis contributes to the existing literature by providing a comprehensive analysis of the relationships between socioeconomic behaviour, foreign policy changes, and economic growth factors, and by highlighting the important role of international law in shaping these factors. The study also provides insights into policy implications for governments and international organizations to promote sustainable economic growth.