3Barney,J. 1991, Firm Resource and Sustained Competitive Advantage. Journal of Management, 17 ;99-122.
4Bjorn Axelsson and Geoffrey Easton 1992, Industrial Networks:A New View of Reality London and New .york.
5Brush, Candida. G. and Chaganti, Radha, Business Without Glamour? An Analysis of Resources on Performance by Size and Age in Small Service and Retail Firms, Journal of Business Venturing, 233-257, 14, 1998.
6Conner, K. R. 1991, A Historical Comparison of Resource-based Theory and Five Schools of Thought within Industrial Organization Economics: Do We Have &.New Theory of the Finn.? Journal of Management, 17;124-154.
7Grant, R. M, 1991, The Resource-based Theory of Competitive Advantage: Implication for Strategy Formulation. California Management Review, 33(3); 114-135.
8Petearf, M. A, 1993, The Cornerstones of Competitive Advantage: A Resource-based View. Strategic Management Journal, 14; 179-191.
9Porter, M.E. 1990, The Competitiveness Advantage of Nation. New York: Free Press.
10Porter, M.E. 2000, Location, Competition and Economic Development:Local Clusters in a Global Economic, Economic Development Quarterly, 15-34 Feb. 2000.
3Claus steinele and Holgersehiele:When do in industries cluster.'?-a proposal on how to asses an industry' s propensity to concentrate at s single region or nation[J].Research policy,2002:31.
4Michael E.Porter.Clusters and the New Economies of Competition[J].Harvard Business Review,NowDee,1998.
