The key point in understanding the concept of an international metropolis is the issue of influence, which is based on certain economic strengths. This ability to influence is both a dynamic process of change and a relatively comparative concept.
For instance, New York City has the largest economy in the world, with a GDP of $1.67 trillion in 2021, accounting for 7.3% of the total U.S. GDP last year. Forty-five of the Fortune 500 companies in the United States are headquartered in New York, including Verizon, Pfizer, and News Corporation.
New York also has a well-developed financial infrastructure and financial services, with the New York Stock Exchange being the largest stock exchange in terms of the total market capitalization of listed companies. Wall Street in lower Manhattan is the undisputed financial center of the world.
A cosmopolitan city has a diverse and mobile demographic composition, with a large urban population.
In 2021, New York City's total population is approximately 8.8 million, with approximately 44% being white, 25% black, and 13% Asian (including approximately 6% of Chinese descent).

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