A common image of innovation is large firms having business disrupted by a few smart people in a garage striving to make their ‘little dent in the universe’. But effective innovation often happens when people and firms of all sizes cluster in a hot house of competition and collaboration to satisfy demand in new ways. Five thousand years ago people in China clustered together to innovate and manufacture silk, and there are countless other examples. In the 1990s, Paul Krugman [1] and Michael Porter [2] explained clusters in terms of: Interconnected companies and institutions in one place Focused on a particular…