World-systems theory is a concept that describes the history of international trade as a system of unequal relations between developed and developing countries. There are various synonyms of the world-systems theory that revolve around the social, economic, and political dynamics of the international system. The most common synonyms of world-systems theory include globalization, dependency theory, neo-colonialism, and world order theories. These synonyms deal with the power imbalances within a global economy and the resulting effects on production, consumption, sociopolitical structure, and territorial sovereignty. Overall, the world-systems theory remains a thought-provoking concept that provides insights into global inequality and its consequences.