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 Hills Silicon Hills Silicon Hills is a nickname for the cluster of high-tech companies in the Austin metropolitan area in the U.S. state of Texas. The name is analogous to Silicon Valley, but refers to the hilly terrain on the west side of Austin. High tech industries in the area include enterprise software, semiconductors, corporate R&D, biotechnology, gaming, and a variety of startup companies. Technology companies with offices in the area include Advanced Micro Devices, Apple Inc., ARM Holdings, Cisco, eBay, Facebook, Google, IBM, Indeed, Intel, Silicon Labs, Texas Instruments, Oracle Corporation, VMWare, and many others. Dell's worldwide headquarters are located