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,
Science and technology in Israel voice-mail company; and Mercury Interactive, which measures software performance. A high concentration of high-tech industries in the coastal plain of Israel has led to the nickname Silicon Wadi (lit: "Silicon Valley"). Both Israeli and international companies are based there. Intel and Microsoft built their first overseas research and development centers in Israel, and other high-tech multi-national corporations, such as IBM, Cisco Systems, and Motorola, have opened facilities in the country. Intel developed its dual-core Core Duo processor at its Israel Development Center in Haifa. More than 3,850 start-ups have been established in Israel, making it second only to the US