1. Acs, Z. J., Arenius, P., Hay, M., & Minniti, M. (2005). Global entrepreneurship monitor: 2004 executive report. London, U.K. and Babson Park, MA.
2. Public policy in an entrepreneurial economy: Creating the conditions for business growth;Ács,2008
3. Multiple regression: Testing and interpreting interactions;Aiken,1991
4. Dyadic business relationships within a business network context;Anderson;Journal of Marketing,1994
5. A network-based approach on opportunity recognition;Arenius;Small Business Economics,2005