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.
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