1. Jensen, Richard & Showalter, Dean, 2004. "Strategic debt and patent races," International Journal of Industrial Organization, Elsevier, vol. 22(7), pages 887-915, September. [Downloadable!] (restricted)
2. Gianni De Fraja & Claudio A. G. Piga, . "Strategic Debt in Vertical Relationships," Discussion Papers 98/16, Department of Economics, University of York. [Downloadable!]
   Other versions:
   • Gianni deFraja & Claudio Piga, 2000. "Strategic Debt in Vertical Relationships," Econometric Society World Congress 2000 Contributed Papers 0059, Econometric Society. [Downloadable!]
3. Diamond, Douglas W, 1991. "Monitoring and Reputation: The Choice between Bank Loans and Directly Placed Debt," Journal of Political Economy, University of Chicago Press, vol. 99(4), pages 689-721, August. [Downloadable!] (restricted)
4. Bronwyn Hall, 2002. "The Financing of Research and Development," Department of Economics, Working Paper Series 1004, Department of Economics, Institute for Business and Economic Research, UC Berkeley. [Downloadable!]
   Other versions:
   • Bronwyn H. Hall, 2002. "The Financing of Research and Development," NBER Working Papers 8773, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Bronwyn H. Hall, 2003. "The Financing of Research and Development," Finance 0303003, EconWPA. [Downloadable!]
   • Bronwyn H. Hall, 2002. "The Financing of Research and Development," Oxford Review of Economic Policy, Oxford University Press, vol. 18(1), pages 35-51, Spring.
5. Hellmann, Thomas & Stiglitz, Joseph, 2000. "Credit and equity rationing in markets with adverse selection," European Economic Review, Elsevier, vol. 44(2), pages 281-304, February. [Downloadable!] (restricted)
6. Bhattacharya, Sudipto & Ritter, Jay R, 1983. "Innovation and Communication: Signalling with Partial Disclosure," Review of Economic Studies, Blackwell Publishing, vol. 50(2), pages 331-46, April. [Downloadable!] (restricted)
7. Robin Boadway & Michael Keen, 2004. "Financing New Investments under Asymmetric Information: A General Approach," Working Papers 1017, Queen's University, Department of Economics. [Downloadable!]
   Other versions:
   • Robin Boadway & Michael Keen, 2004. "Financing New Investments under Asymmetric Information: a General Approach," Cahiers de recherche 0407, CIRPEE. [Downloadable!]
8. Heckman, James J, 1979. "Sample Selection Bias as a Specification Error," Econometrica, Econometric Society, vol. 47(1), pages 153-61, January. [Downloadable!] (restricted)
9. Jeremy Berkowitz & Michelle J. White, 2004. "Bankruptcy and Small Firms' Access to Credit," RAND Journal of Economics, The RAND Corporation, vol. 35(1), pages 69-84, Spring.
10. Jensen, Michael C. & Meckling, William H., 1976. "Theory of the firm: Managerial behavior, agency costs and ownership structure," Journal of Financial Economics, Elsevier, vol. 3(4), pages 305-360, October. [Downloadable!] (restricted)
11. Showalter, Dean, 1999. "Strategic debt: evidence in manufacturing," International Journal of Industrial Organization, Elsevier, vol. 17(3), pages 319-333, April. [Downloadable!] (restricted)
12. Tether, Bruce S., 2002. "Who co-operates for innovation, and why: An empirical analysis," Research Policy, Elsevier, vol. 31(6), pages 947-967, August. [Downloadable!] (restricted)
13. Guiso, Luigi, 1998. "High-tech firms and credit rationing," Journal of Economic Behavior & Organization, Elsevier, vol. 35(1), pages 39-59, March. [Downloadable!] (restricted)
    Other versions:
    • Guiso, Luigi, 1997. "High-Tech Firms and Credit Rationing," CEPR Discussion Papers 1696, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
14. Bayona, Cristina & Garcia-Marco, Teresa & Huerta, Emilio, 2001. "Firms' motivations for cooperative R&D: an empirical analysis of Spanish firms," Research Policy, Elsevier, vol. 30(8), pages 1289-1307, October. [Downloadable!] (restricted)
15. Claudio A. Piga & Marco Vivarelli, 2004. "Internal and External R&D: A Sample Selection Approach," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 66(4), pages 457-482, 09. [Downloadable!] (restricted)
    Other versions:
    • Claudio A. Piga & Marco Vivarelli, 2003. "Internal and External R&D: A Sample Selection Approach," Discussion Papers on Entrepreneurship, Growth and Public Policy 2004-05, Max Planck Institute of Economics, Group for Entrepreneurship, Growth and Public Policy. [Downloadable!]
16. Leland, Hayne E & Pyle, David H, 1977. "Informational Asymmetries, Financial Structure, and Financial Intermediation," Journal of Finance, American Finance Association, vol. 32(2), pages 371-87, May. [Downloadable!] (restricted)
    Other versions:
    • Hayne E. Leland and David H. Pyle., 1976. "Informational Asymmetries, Financial Structure, and Financial Intermediation," Research Program in Finance Working Papers 41, University of California at Berkeley. [Downloadable!]
17. Stiglitz, Joseph E & Weiss, Andrew, 1981. "Credit Rationing in Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 71(3), pages 393-410, June. [Downloadable!] (restricted)
18. Veugelers, Reinhilde & Cassiman, Bruno, 1999. "Make and buy in innovation strategies: evidence from Belgian manufacturing firms," Research Policy, Elsevier, vol. 28(1), pages 63-80, January. [Downloadable!] (restricted)
19. Mocnik, Dijana, 2001. "Asset specificity and a firm's borrowing ability: an empirical analysis of manufacturing firms," Journal of Economic Behavior & Organization, Elsevier, vol. 45(1), pages 69-81, May. [Downloadable!] (restricted)
20. Greene, William, 1998. "Sample selection in credit-scoring models1," Japan and the World Economy, Elsevier, vol. 10(3), pages 299-316, July. [Downloadable!] (restricted)
21. de Meza, David & Webb, David, 2000. "Does credit rationing imply insufficient lending?," Journal of Public Economics, Elsevier, vol. 78(3), pages 215-234, November. [Downloadable!] (restricted)
22. Bagella, M. & Becchetti, L. & Caggese, A., 2001. "Financial constraints on investments: A three-pillar approach," Research in Economics, Elsevier, vol. 55(2), pages 219-254, June. [Downloadable!] (restricted)
23. Asher Blass & Oved Yosha, 2003. "Financing R&D in mature companies: an empirical analysis," Economics of Innovation and New Technology, Taylor and Francis Journals, vol. 12(5), pages 425-447, October. [Downloadable!] (restricted)
24. C. Piga & M. Vivarelli, 2003. "Sample selection in estimating the determinants of cooperative R&D," Applied Economics Letters, Taylor and Francis Journals, vol. 10(4), pages 243-246, March. [Downloadable!] (restricted)
25. Bester, Helmut, 1985. "Screening vs. Rationing in Credit Markets with Imperfect Information," American Economic Review, American Economic Association, vol. 75(4), pages 850-55, September. [Downloadable!] (restricted)
26. Robert E. Carpenter & Bruce C. Petersen, 2002. "Capital Market Imperfections, High-Tech Investment, and New Equity Financing," Economic Journal, Royal Economic Society, vol. 112(477), pages F54-F72, February. [Downloadable!] (restricted)
27. Fraja, Gianni De & Piga, Claudio A. G., 2004. "Strategic debt in vertical relationships: theory and evidence," Research in Economics, Elsevier, vol. 58(2), pages 103-123, June. [Downloadable!] (restricted)

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1. Claudio A. Piga & Giuseppe Medda, 2007. "Technological Spillovers and Productivity in Italian Manufacturing Firms," Discussion Paper Series 2007_17, Department of Economics, Loughborough University, revised Jul 2007. [Downloadable!]
   Other versions:
   • Claudio A. Piga & Giuseppe Medda, 2007. "Technological Spillovers and Productivity in Italian Manufacturing Firms," Working Paper Series 08-07, Rimini Centre for Economic Analysis, revised Jul 2007. [Downloadable!]