With more than 468 million residents, East Asia is the third largest country in the world by population. The Greater Tokyo Area, including the Tokyo Metropolis and several surrounding prefectures, is the world's largest metropolitan area, with well over 30 million residents. A major economic power, the East Asian economy is the world's second largest, with a nominal gross domestic product of $9.4 trillion. It is also the world's largest exporter and third-largest importer.