1. Blundell, Richard & Griffith, Rachel & Van Reenen, John, 1995. "Dynamic Count Data Models of Technological Innovation," Economic Journal, Royal Economic Society, vol. 105(429), pages 333-44, March. [Downloadable!] (restricted)
   Other versions:
   • Richard Blundell & Rachel Griffith & John Van Reenen, 1994. "Dynamic count data models of technological innovation," IFS Working Papers W94/10, Institute for Fiscal Studies.
2. Jerry A. Hausman & Bronwyn H. Hall & Zvi Griliches, 1984. "Econometric Models for Count Data with an Application to the Patents-R&D Relationship," NBER Technical Working Papers 0017, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   Other versions:
   • Hausman, Jerry & Hall, Bronwyn H & Griliches, Zvi, 1984. "Econometric Models for Count Data with an Application to the Patents-R&D Relationship," Econometrica, Econometric Society, vol. 52(4), pages 909-38, July. [Downloadable!] (restricted)
3. Stoneman, Paul & Kwon, Myung-Joong, 1994. "The Diffusion of Multiple Process Technologies," Economic Journal, Royal Economic Society, vol. 104(423), pages 420-31, March. [Downloadable!] (restricted)
4. Granger, C W J, 1969. "Investigating Causal Relations by Econometric Models and Cross-Spectral Methods," Econometrica, Econometric Society, vol. 37(3), pages 424-38, July. [Downloadable!] (restricted)
5. David, Paul A, 1985. "Clio and the Economics of QWERTY," American Economic Review, American Economic Association, vol. 75(2), pages 332-37, May. [Downloadable!] (restricted)
6. Economides, Nicholas, 1996. "The economics of networks," International Journal of Industrial Organization, Elsevier, vol. 14(6), pages 673-699, October. [Downloadable!] (restricted)
   Other versions:
   • Nicholas Economides, 1997. "The Economics of Networks," Industrial Organization 9701002, EconWPA. [Downloadable!]
   • Nicholas Economides, 1995. "The Economics of Networks," Working Papers 94-24, New York University, Leonard N. Stern School of Business, Department of Economics, revised Sep 1995. [Downloadable!]
   • Nicholas Economides, 1997. "The Economics of Networks," Brazilian Electronic Journal of Economics, Department of Economics, Universidade Federal de Pernambuco, vol. 1(0), December. [Downloadable!]
7. Nicholas Economides & Charles Himmelberg, 1995. "Critical Mass and Network Size with Application to the US Fax Market," Working Papers 95-11, New York University, Leonard N. Stern School of Business, Department of Economics. [Downloadable!]
8. Richard Blundell & Rachel Griffith & Frank Windmeijer, 1999. "Individual effects and dynamics in count data models," IFS Working Papers W99/03, Institute for Fiscal Studies. [Downloadable!]
   Other versions:
   • Blundell, Richard & Griffith, Rachel & Windmeijer, Frank, 2002. "Individual effects and dynamics in count data models," Journal of Econometrics, Elsevier, vol. 108(1), pages 113-131, May. [Downloadable!] (restricted)
9. Reinganum, Jennifer F, 1981. "On the Diffusion of New Technology: A Game Theoretic Approach," Review of Economic Studies, Blackwell Publishing, vol. 48(3), pages 395-405, July. [Downloadable!] (restricted)
   Other versions:
   • Reinganum, Jennifer F., . "On the Diffusion of New Technology: A Game Theoretic Approach," Working Papers 312, California Institute of Technology, Division of the Humanities and Social Sciences. [Downloadable!]
10. Heckman, James J, 1979. "Sample Selection Bias as a Specification Error," Econometrica, Econometric Society, vol. 47(1), pages 153-61, January. [Downloadable!] (restricted)
11. Crepon, B. & Duguet, E., 1995. "Research and Development, Competition and Innovation; Pseudo Maximum Likelihood and Simulated Maximum Likelihood Methods Applied to Count Data Models with Heterogeneity," Papiers d'Economie Mathématique et Applications 95.08, Université Panthéon-Sorbonne (Paris 1).
    Other versions:
    • Crepon, Bruno & Duguet, Emmanuel, 1997. "Research and development, competition and innovation pseudo-maximum likelihood and simulated maximum likelihood methods applied to count data models with heterogeneity," Journal of Econometrics, Elsevier, vol. 79(2), pages 355-378, August. [Downloadable!] (restricted)
12. William H. Greene, 1997. "FIML Estimation of Sample Selection Models for Count Data," Working Papers 97-02, New York University, Leonard N. Stern School of Business, Department of Economics.
13. Colombo, Massimo G & Mosconi, Rocco, 1995. "Complementarity and Cumulative Learning Effects in the Early Diffusion of Multiple Technologies," Journal of Industrial Economics, Blackwell Publishing, vol. 43(1), pages 13-48, March. [Downloadable!] (restricted)
14. Kenneth Arrow, 1962. "Economic Welfare and the Allocation of Resources for Invention," NBER Chapters, in: The Rate and Direction of Inventive Activity: Economic and Social Factors, pages 609-626 National Bureau of Economic Research, Inc. [Downloadable!]
15. Montalvo, Jose G, 1997. "GMM Estimation of Count-Panel-Data Models with Fixed Effects and Predetermined Instruments," Journal of Business & Economic Statistics, American Statistical Association, vol. 15(1), pages 82-89, January.
16. Grogger, J T & Carson, Richard T, 1991. "Models for Truncated Counts," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 6(3), pages 225-38, July-Sept. [Downloadable!] (restricted)
17. Lichtenberg, Frank R, 1987. "The Effect of Government Funding on Private Industrial Research and Development: A Re-assessment," Journal of Industrial Economics, Blackwell Publishing, vol. 36(1), pages 97-104, September. [Downloadable!] (restricted)
18. Menezes-Filho, Naercio & Ulph, David & Van Reenen, John, 1998. "The determination of R&D: Empirical evidence on the role of unions," European Economic Review, Elsevier, vol. 42(3-5), pages 919-930, May. [Downloadable!] (restricted)

Cited by:
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1. Eva M. Meyersson & Trond Petersen & Rita Asplund, 2000. "Pay, Risk, and Productivity. The Case of Finland, 1980-1996," Discussion Papers 743, The Research Institute of the Finnish Economy. [Downloadable!]
2. Pekka Ilmakunnas & Mika Maliranta, 2001. "The Turnover of Jobs and Workers in a Deep Recession: Evidence from the Finnish Business Sector," Discussion Papers 747, The Research Institute of the Finnish Economy. [Downloadable!]
3. Erkki Koskela & Matti Virén, 2000. "Is There a Laffer Curve Between Aggregate Output and Public Sector Employment," Discussion Papers 737, The Research Institute of the Finnish Economy. [Downloadable!]
4. Ari Hyytinen, 2002. "Loan Market Equilibrium with Difference of Opinion and Imperfect Competition (Revised version)," Discussion Papers 748, The Research Institute of the Finnish Economy. [Downloadable!]
5. Erkki Koskela & Ronnie Schöb & Hans-Werner Sinn, 2000. "Green Tax Reform and Competitiveness," Discussion Papers 731, The Research Institute of the Finnish Economy. [Downloadable!]
   Other versions:
   • Erkki Koskela & Ronnie Schob & Hans-Werner Sinn, 1999. "Green Tax Reform and Competitiveness," NBER Working Papers 6922, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Erkki Koskela & Ronnie Schoeb & Hans-Werner Sinn, 1998. "Green Tax Reform and Competitiveness," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
   • Koskela, Erkki & Schöb, Ronnie & Sinn, Hans-Werner, 1999. "Green Tax Reform and Competitiveness," CEPR Discussion Papers 2089, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
   • Erkki Koskela & Hans-Werner Sinn & Ronnie Schöb, 2001. "Green Tax Reform and Competitiveness," German Economic Review, Blackwell Publishing, vol. 2(1), pages 19-30, 02. [Downloadable!] (restricted)