The New Georgaphy of American Innovation by Richard FloridaFri Jul 17th 2009 at 9:45am EDT
"It’s well-known that high-tech industries are concentrated and clustered in areas like Silicon Valley, Greater Boston, Seattle, Austin, and North Carolina’s Research Triangle. Paul Krugman won a Nobel Prize for his pioneering work on the relationships between urbanization, trade, and economies of scale. And Michael Porter has shown how and why innovative firms cluster."
