2011 data show U.S. business R&D highly concentrated by state and metropolitan location

U.S. 3-d map and test tubes According to a new National Science Foundation (NSF) report, nearly half of the research and development (R&D) paid for and performed by companies in the 50 United States and the District of Columbia in 2011 was performed in five states: California, Washington, Texas, Massachusetts and Michigan.Overall, companies performed $239 billion in R&D paid for by their own company expenses in the U.S. in 2011. Large ... More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=132482&WT.mc_id=USNSF_51&WT.mc_ev=click
This is an NSF News item.