Application of Game Theory in the Fast Fashion Industry Chain: A New Path to Optimize Collaboration and Sustainable Development

The fast fashion industry chain operates in a complex, multi-layered supply chain, where the dual challenges of conflicting interests and environmental pressures pose a severe test to sustainable development. This paper aims to explore how the theoretical framework of game theory can provide new solutions to the sustainability problems of the fast fashion industry chain. As a tool for studying the interaction between stakeholders, game theory can analyze the decision-making logic of all parties in competition and cooperation, and reveal potential paths for interest distribution and resource optimization. By analyzing key game theory concepts such as static games, dynamic games, repeated games, cooperative games, and Nash equilibrium, the study shows that these tools can effectively resolve conflicts, promote collaboration, and promote sustainable development in supply chain management. The study also proposes methods for designing incentive mechanisms to balance economic interests and environmental responsibilities, and provide a path to achieve win-win results for all parties and circular economy practices.