References
- Boschma , R. and Frenken , K. 2006 . Why is economic geography not an evolutionary science? Towards an evolutionary economic geography . Journal of Economic Geography , 6 ( 3 ) : 273 – 302 .
- Nelson , R. R. and Winter , S. G. 1982 . An Evolutionary Theory of Economic Change , Cambridge , MA : Belknap Press of Harvard University Press .