Economy of New York City feet (37.2 million m) that same year, is the largest central business district in the world. New York City is distinctive for its high concentrations of advanced service sector firms in the law, accountancy, banking and management consultancy fields. It is the top global center for the advertising industry, which is metonymously called "Madison Avenue". Silicon Alley, metonymous for New York's broad-spectrum high technology sphere, continues to expand. Finance, high technology, real estate, insurance, and health care all form the basis of New York's economy. The city is also the nation's most important center for mass media, journalism, and publishing.
Concentration of media ownership a limited number of stations. In most countries, this system of licensing makes many markets local oligopolies. The similar market structure exists for television broadcasting, cable systems and newspaper industries, all of which are characterized by the existence of large-scale owners. Concentration of ownership is often found in these industries. In the United States, data on ownership and market share of media companies is not held in the public domain. Organizations like Fairness and Accuracy in Reporting have accused the Military-industrial-media complex of using their media resources to promote militarism, which, according to Fairness and Accuracy in Reporting's hypothesis, benefits