Music of New York City that its status has declined in recent years, due to a combination of increased corporate control over music media, an increase in the cost of living, and the rise of local music scenes whose success is facilitated by the cheap communication provided by the Internet. New York has been a center for the American music industry since the earliest records in the early 20th century. Since then, a number of companies and organizations have set up headquarters in New York, from the Tin Pan Alley publishers and Broadway to modern independent rock and hip hop labels, non-profit organizations, and others.
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,