New York City, officially the City of New York, is the most populous city in the United States and the most densely populated major city in North America. The city is a center for international finance, fashion, entertainment, and culture, and is widely considered to be one of the world's major global cities with an extraordinary collection of museums, galleries, performance venues, media outlets, international corporations and financial markets. It is also home to the headquarters of the United Nations.

New York City is a major center for international business and commerce and is one of three "command centers" for the global economy (along with Tokyo and London). The financial, insurance, and real estate industries form the basis of the city's economy. New York is also the most important center for mass media, journalism and publishing in the United States as well as the preeminent arts center in the country. Other important sectors include the city's television and film industry, second largest in the United States after Hollywood; medical research and technology; non-profit institutions and universities; and fashion.

The city's stock exchanges are among the most important in the world. The New York Stock Exchange is the largest stock exchange in the world by dollar volume, while the NASDAQ is the world's largest by number of listings. Many international corporations are headquartered in the city, including more Fortune 500 companies than anywhere else.

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