Electronic copy available at: http://ssrn.com/abstract=1418079 Friends or Neighbors ? The Effects Of Inter-Firm Network And Cluster On Technological Innovation DEVI R. GNYAWALI R.B. Pamplin College of Business 2106 Pamplin Hall Virginia Polytechnic Institute and State University Blacksburg, VA 24061-0233 Phone: 540.231.5021 Fax: 540.231.3076 Email: devi@vt.edu MANISH K. SRIVASTAVA School of Business and Economics 123 Academic Office Building Michigan Technological University Houghton, MI 49931 Phone: 906.487.1991 Fax: 906.487.1863 Email: mksrivas@mtu.edu An earlier version of this paper was presented at the 2007 Academy of Management Conference held in Philadelphia January 2009