1. Acs, Z. J., & Varga, A. (2005). Entrepreneurship, agglomeration and technological change. Small Business Economics, 24(3), 323–334.
2. Amoros, J. A. (2009). Entrepreneurship and quality of institutions: A developing-country approach. UNU-WIDER Research Paper, No. 2009/07.
3. Baliamoune-Lutz, M. (2007). Entrepreneurship, reforms and development: Empirical evidence, ICER Working Paper No. 38/2007. Turin: International Centre for Economic Research.
4. Baumol, W. J. (1990). Entrepreneurship: Productive, unproductive and destructive. Journal of Political Economy, 98(5), 893–921.
5. Baumol, W. J. (2010). The micro-theory of innovative entrepreneurship. Princeton: Princeton University Press.