The Global Power City Index (GPCI) is an annual ranking of cities based on their economic, research and development, cultural and exchange, living, environmental, and transportation and accessibility performance. The ranking is reviewed and validated by a panel of international experts, including the late Sir Peter Hall, a renowned urban strategist. The GPCI aims to provide a comprehensive assessment of cities, allowing policymakers and businesses to understand their strengths, weaknesses, and challenges in a rapidly changing world. The results of the ranking, along with the data collected since its inception in 2008, are expected to be useful for urban planning and corporate strategy.