The article discusses how international law has become more influential, with a rise in international courts making legal decisions. These courts are gaining more independence from countries, shaping laws through their interpretations. This shift has led to a more dynamic legal system, where courts play a bigger role in developing and adapting laws based on majority preferences. The focus is on how international judicial authority is established in the field of international economic law, including trade law and arbitration. The study looks at the history, culture, and behavior of these institutions to understand how they shape judicial authority in international economic law.