Guangdong, Jiangsu, Shandong, and Zhejiang are the four most powerful provinces in China. Guangdong, in fact, is a veritable China’s largest economic province, accounting for one-eighth of the country’s total economic output. Since 1989, Guangdong's GDP has ranked first in the country for 28 consecutive years. Not only that, Guangdong has two seats in the top four cities: Guangzhou and Shenzhen. The 9 cities of the Pearl River Delta in Guangdong will join hands with Hong Kong and Macau to build the Guangdong, Hong Kong and Macau Bay Area, and become one of the four largest bay areas in the world alongside the New York Bay Area, the San Francisco Bay Area, and the Tokyo Bay Area.