Notes
1. Among the rare exceptions are studies by Baptista and Swann Citation(1998), Baptista Citation(2000) and Audretsch and Dohse Citation(2004).
2. Cortright argues that the great empirical challenge is “… to use statistical tools and techniques more creatively to help describe the workings of individual clusters, to marry data to the case study and storytelling approach, rather than to attempt to uncover universal relationships across a disparate set of industries” (Cortright, Citation2006, p. 51).