1. Fagerberg, Jan & Verspagen, Bart, 2002. "Technology-gaps, innovation-diffusion and transformation: an evolutionary interpretation," Research Policy, Elsevier, vol. 31(8-9), pages 1291-1304, December. [Downloadable!] (restricted)
   Other versions:
   • Jan Fagerberg & Bart Verspagen, 2001. "Technology-Gaps, Innovation-Diffusion And Transformation: An Evolutionary Interpretation," Working Papers 11, Centre for Technology, Innovation and Culture, University of Oslo. [Downloadable!]
2. Ralf Ruhwedel & Michael Funke, 2005. "Export Variety and Economic Growth in East European Transition Economies," Quantitative Macroeconomics Working Papers 20502, Hamburg University, Department of Economics. [Downloadable!]
   Other versions:
   • Michael Funke & Ralf Ruhwedel, 2003. "Export variety and economic growth in East European transition economies," Macroeconomics 0307002, EconWPA. [Downloadable!]
   • Funke, Michael & Ruhwedel, Ralf, 2003. "Export variety and economic growth in East European transition economies," BOFIT Discussion Papers 8/2003, Bank of Finland, Institute for Economies in Transition. [Downloadable!]
   • Michael Funke & Ralf Ruhwedel, 2005. "Export variety and economic growth in East European transition economies," The Economics of Transition, The European Bank for Reconstruction and Development, vol. 13(1), pages 25-50, 01. [Downloadable!] (restricted)
3. Pier Saviotti & Andreas Pyka, 2004. "Economic development by the creation of new sectors," Journal of Evolutionary Economics, Springer, vol. 14(1), pages 1-35, January. [Downloadable!] (restricted)
4. Ralf Ruhwedel & Michael Funke, 2001. "Product Variety and Economic Growth Empirical Evidence for the OECD Countries," Quantitative Macroeconomics Working Papers 20104, Hamburg University, Department of Economics. [Downloadable!]
   Other versions:
   • Funke, Michael & Ruhwedel, Ralf, 2000. "Product Variety and Economic Growth - Empirical Evidence for the OECD Countries," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
   • Michael Funke, 2000. "Product Variety and Economic Growth - Empirical Evidence for the OECD Countries," IMF Working Papers 00/5, International Monetary Fund.
   • Michael Funke & Ralf Ruhwedel, 1999. "Product Variety and Economic Growth-Empirical Evidence for the OECD Countries," CRIEFF Discussion Papers 9906, Centre for Research into Industry, Enterprise, Finance and the Firm.
5. Breschi, Stefano & Lissoni, Francesco & Malerba, Franco, 2003. "Knowledge-relatedness in firm technological diversification," Research Policy, Elsevier, vol. 32(1), pages 69-87, January. [Downloadable!] (restricted)
6. C. A. Hidalgo & B. Klinger & A. -L. Barabasi & R. Hausmann, 2007. "The Product Space Conditions the Development of Nations," Quantitative Finance Papers 0708.2090, arXiv.org. [Downloadable!]
7. Ricardo Hausmann & Jason Hwang & Dani Rodrik, 2005. "What You Export Matters," NBER Working Papers 11905, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   Other versions:
   • Hausmann, Ricardo & Hwang, Jason & Rodrik, Dani, 2006. "What You Export Matters," CEPR Discussion Papers 5444, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
   • Hausmann, Ricardo & Hwang, Jason & Rodrik, Dani, 2005. "What You Export Matters," Working Paper Series rwp05-063, Harvard University, John F. Kennedy School of Government. [Downloadable!]
   • Ricardo Hausmann & Jason Hwang & Dani Rodrik, 2007. "What you export matters," Journal of Economic Growth, Springer, vol. 12(1), pages 1-25, March. [Downloadable!] (restricted)
8. Frenken, Koen & Saviotti, Paolo P. & Trommetter, Michel, 1999. "Variety and niche creation in aircraft, helicopters, motorcycles and microcomputers," Research Policy, Elsevier, vol. 28(5), pages 469-488, June. [Downloadable!] (restricted)
9. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-51, March. [Downloadable!] (restricted)
   Other versions:
   • Aghion, P. & Howitt, P., 1990. "A Model Of Growth Through Creative Destruction," DELTA Working Papers 90-12, DELTA (Ecole normale supérieure).
   • Aghion, P. & Howitt, P., 1989. "A Model Of Growth Through Creative Destruction," UWO Department of Economics Working Papers 8904, University of Western Ontario, Department of Economics.
   • Philippe Aghion & Peter Howitt, 1990. "A Model of Growth Through Creative Destruction," NBER Working Papers 3223, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Aghion, P. & Howitt, P., 1989. "A Model Of Growth Through Creative Destruction," Working papers 527, Massachusetts Institute of Technology (MIT), Department of Economics.
10. Teece, David J. & Rumelt, Richard & Dosi, Giovanni & Winter, Sidney, 1994. "Understanding corporate coherence : Theory and evidence," Journal of Economic Behavior & Organization, Elsevier, vol. 23(1), pages 1-30, January. [Downloadable!] (restricted)
11. Lancaster, Kelvin, 1975. "Socially Optimal Product Differentiation," American Economic Review, American Economic Association, vol. 65(4), pages 567-85, September. [Downloadable!] (restricted)
12. Lionel Nesta & Pier-Paolo Saviotti, 2006. "Firm knowledge and market value in biotechnology," Industrial and Corporate Change, Oxford University Press, vol. 15(4), pages 625-652, August.

Cited by:
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1. Luciana Lazzeretti & Rafael Boix & Francesco Capone, 2009. "Why do creative industries cluster? An analysis of the determinants of clustering of creative industries," IERMB Working Paper in economics 0902, Institut d'Estudis Regionals i Metropolitans de Barcelona. [Downloadable!]
2. Krafft Jackie & Quatraro Francesco & Saviotti Paolo, 2009. "The evolution of knowledge base in knowledge-intensive sectors: Social Network analysis of Biotechnology," Dipartimento di Economia "S. Cognetti de Martiis" LEI & BRICK - Laboratorio di economia dell'innovazione "Franco Momigliano", Bureau of Research in Innovation, Complexity and Knowledge, Collegio Carlo 200909, University of Turin. [Downloadable!]
3. Pier Saviotti & Andreas Pyka, 2008. "Product variety, competition and economic growth," Journal of Evolutionary Economics, Springer, vol. 18(3), pages 323-347, August. [Downloadable!] (restricted)