Considering the fierce global competition between cities, the Global Power City Index (GPCI) evaluates and ranks the major cities of the world according to their “magnetism” their comprehensive power to attract creative people and business enterprises from around the world. The 2013 edition of the Global Power City Index includes data from newly conducted surveys on the residents of all the cities included in the index to reflect most recent trends. A careful review of the data of some indicators was also performed. In addition, every effort was made to assess the “intangible urban value” of cities, a new value that will affect the urban power of a city in the future and which appeals to human sensitivities such as efficiency, accuracy, speed, cleanliness and security and safety or urban management, rather than just the city´s physical aspects. London, New York, Paris and Tokio are ranked as the top four cities in the 2013 GPCI comprehensive rankings.