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 and for online media 52%. In some cases -such as that of Doğuş Media and Doğan Media - political affiliations of media owners/executives have come to light through wiretaps or leaked correspondence allegedly between media owners/executives and government officials. With regard to the economic influence, most of the shareholders of companies that own the top 40 media outlets are commercial corporations. According to an expert, one of the reasons why big conglomerates are almost the only owners in the media market is a consequence of the government’s intolerance toward criticism. Such intolerance to criticism, which heavily influenced the work of