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 in Turkey information on concentration of media ownership rely on news analyses, secondary sources and the analysis of the concentration of media audience. As to the radio in Turkey, there are 36 national, 102 regional, 952 local radio stations totalling 1090. The public broadcast Turkish Radio and Television (TRT) held the radio monopoly until 1992. Currently, it holds two radio stations in the top 10 list of radios dominating the sector. Instead, among media groups, Doğan Group (Radyo D, Slow Türk, CNN Türk) and Doğuş Group (Kral FM, NTV Radio, Kral Pop Radio, Kral World Radio) are the two media companies dominating