History: Life In The New York City, 19th Century, United States

The New York metropolitan area had approximately gross metropolitan product of $1.13 trillion in 2005, making it the largest regional economy in the United States and, according to IT Week, the second largest city economy in the world. According to Cinco Dias, New York controlled 40% of the world's finances by the end of 2008, making it the largest financial center in the world.
Many major corporations are headquartered in New York City, including 42 Fortune 500 companies. New York is also unique among American cities for its large number of foreign corporations. One out of ten private sector jobs in the city is with a foreign company.
Manhattan had 353.7 million square feet (32,860,000 m²) of office space in 2001.
Midtown Manhattan is the largest central business district in the United States. Lower Manhattan is the third largest central business district in the United States, and is home to The New York Stock Exchange, located on Wall Street, and the NASDAQ, representing the world's first and second largest stock exchanges, respectively, when measured by average daily trading volume and overall market capitalization. Financial services account for more than 35% of the city's employment income.