<P> The New York City regional economy is the largest in the United States and one of the most important in the world . In 2015 the CSA had a GDP of $1.83 trillion, which would rank 8th among countries . Many Fortune 500 corporations are headquartered in New York City, as are a large number of foreign corporations . One out of ten private sector jobs in the city is with a foreign company . In 2012 and 2015, New York City topped the first and second Global Economic Power Index lists, respectively, as published by The Atlantic, with cities ranked according to criteria reflecting their presence on five different lists as published by five separate entities . Finance, international trade, new and traditional media, real estate, education, fashion and entertainment, tourism, biotechnology, and manufacturing are the leading industries in the area . </P> <P> Along with its wealth, the area has a cost of living that is among the highest in the United States . </P> <P> New York City's most important economic sector lies in its role as the headquarters for the U.S. financial industry, metonymously known as Wall Street . Anchored by Wall Street, in the Financial District of Lower Manhattan, New York City has been called both the most economically powerful city and the leading financial center of the world, and the city is home to the world's two largest stock exchanges by total market capitalization, the New York Stock Exchange and NASDAQ . The city's securities industry, enumerating 163,400 jobs in August 2013, continues to form the largest segment of the city's financial sector and an important economic engine, accounting in 2012 for 5 percent of the city's private sector jobs, 8.5 percent (US $3.8 billion) of its tax revenue, and 22 percent of the city's total wages, including an average salary of US $360,700 . </P> <P> Manhattan had approximately 520 million square feet (48.1 million m2) of office space in 2013, making it the largest office market in the United States, while Midtown Manhattan is the largest central business district in the nation . </P>

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