New York metropolitan area to take advantage of New Jersey's relatively lower commercial real estate and rental prices, while offering continued geographic proximity to Manhattan's financial industry ecosystem. Silicon Alley, centered in New York City, has evolved into a metonym for the sphere encompassing the metropolitan region's high technology industries involving the Internet, new media, financial technology ("fintech"), telecommunications, digital media, software development, biotechnology, game design, and other fields within information technology that are supported by its entrepreneurship ecosystem and venture capital investments. In 2015, Silicon Alley generated over US$7.3 billion in venture capital investment, most based in Manhattan, as well as in Brooklyn,
Silicon Valley supports innovation and entrepreneurship. Attempts to create "Silicon Valleys" in environments where disruptive innovation does not go over well have a poor track record. The San Francisco Bay Area has the largest concentration of high-tech companies in the United States, at 387,000 high-tech jobs, of which Silicon Valley accounts for 225,300 high-tech jobs. Silicon Valley has the highest concentration of high-tech workers of any metropolitan area, with 285.9 out of every 1,000 private-sector workers. Silicon Valley has the highest average high-tech salary in the United States at $144,800. Largely a result of the high technology sector, the San Jose-Sunnyvale-Santa Clara,