New York City in the world at 103, including former Mayor Michael Bloomberg. New York also had the highest density of millionaires per capita among major U.S. cities in 2014, at 4.6% of residents. New York City is one of the relatively few American cities levying an income tax (currently about 3%) on its residents. New York is a global hub of business and commerce. The city is a major center for banking and finance, retailing, world trade, transportation, tourism, real estate, new media, traditional media, advertising, legal services, accountancy, insurance, theater, fashion, and the arts in the United States; while Silicon Alley,
Silicon Wadi Silicon Wadi Silicon Wadi (, lit: "Silicon Valley") is an area with a high concentration of high-technology companies on the coastal plain of Israel, similar to Silicon Valley in the U.S. state of California, and is the reason Israel is nicknamed the Start-Up Nation. The area covers much of the country, although especially high concentrations of high-tech industry can be found in the area around Tel Aviv, including small clusters around the cities of Ra'anana, Petah Tikva, Herzliya, Netanya, the academic city of Rehovot and its neighbour Rishon Le Zion. In addition, high-tech clusters can be found in Haifa and