Chicago (English: Chicago) is a city in Illinois, USA. Under the jurisdiction of Cook County, it is also a hub city in the Midwest of the United States, with a population of about 2.72 million in the east of Lake Michigan. Located in the center of the North American continent, it is an important railway and aviation hub in the United States and one of the major financial, futures and commodity trading centers in the United States.

Economic development:

Chicago is the third largest metropolitan area with the highest GDP in the United States (after new york and Los Angeles), with a GDP of $532 billion in 20 10 and $670.5 billion in September 20 17. At the same time, the metropolitan area is also rated as the most balanced economy in the United States. It was rated as the fourth largest business center in the world by MasterCard Global Trade Center Index.

In addition, the number of new enterprises in Chicago metropolitan area has ranked first in the United States for six consecutive years from 200 1 to 2008. And the city's scientific and technological innovation ranks third in the United States. In 2009, this city was rated as the ninth richest city in the world by UBS Group AG.

Reference to the above content: Baidu Encyclopedia-Chicago