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 endangered in the case when there are clientelist relations between the owners of the media and political centres of power. Such a situation enables excessive instrumentalisation of the media for particular political interests, which is subversive for the democratic role of the media. Net neutrality is also at stake when media mergers occur. Net neutrality involves a lack of restrictions on content on the internet, however, with big businesses supporting campaigns financially they tend to have influence over political issues, which can translate into their mediums. These big businesses that also have control over internet usage or the airwaves could