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Innovation Fertility and Patent Design

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Author Info
Hugo A. Hopenhayn
Matthew F. Mitchell

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Abstract

It may be advantageous to provide a variety of kinds of patent protection to heterogenous innovations. Innovations which benefit society largely through their use as building blocks to future inventions may require a different scope of protection in order to be encouraged. We model the problem of designing an optimal patent menu (scope and length) when the fertility of an innovation in generating more innovations cannot be observed. The menu of patent scope can be implemented with mandated buyout fees. Evidence of heterogeneous fertility and patent obsolescence, keys to the model, are presented using patent data from the US.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 7070.

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Date of creation: Apr 1999
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Handle: RePEc:nbr:nberwo:7070

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  1. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-84, July. [Downloadable!] (restricted)
  2. Ted O'Donoghue & Suzanne Scotchmer & Jacques-François Thisse, 1998. "Patent Breadth, Patent Life, and the Pace of Technological Progress," Journal of Economics & Management Strategy, Blackwell Publishing, vol. 7(1), pages 1-32, 03. [Downloadable!] (restricted)
  3. Paul Klemperer, 1990. "How Broad Should the Scope of Patent Protection Be?," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 113-130, Spring. [Downloadable!] (restricted)
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  4. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring. [Downloadable!] (restricted)
  5. Richard Gilbert & Carl Shapiro, 1990. "Optimal Patent Length and Breadth," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 106-112, Spring. [Downloadable!] (restricted)
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  6. Ariel Pakes, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," NBER Working Papers 1340, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  7. Nancy T. Gallini, 1992. "Patent Policy and Costly Imitation," RAND Journal of Economics, The RAND Corporation, vol. 23(1), pages 52-63, Spring. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Nancy Gallini and Suzanne Scotchmer., 2001. "Intellectual Property: When Is It the Best Incentive System?," Economics Working Papers E01-303, University of California at Berkeley. [Downloadable!]
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  2. Adam B. Jaffe, 1999. "The U.S. Patent System in Transition: Policy Innovation and the Innovation Process," NBER Working Papers 7280, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  3. Palomeras, Neus, 2003. "Sleeping patents: any reason to wake up?," IESE Research Papers D/506, IESE Business School. [Downloadable!]
  4. Samuel Kortum, 2004. "Special Section: A corner in honour of Zvi Grilich, An R&D Roundtable," Economics of Innovation and New Technology, Taylor and Francis Journals, vol. 13(4), pages 349-363, June. [Downloadable!] (restricted)
  5. suzanne Scotchmer, 1998. "The Independent-Invention Defense in Intellectual Property," Berkeley Olin Program in Law & Economics, Working Paper Series 1132, Berkeley Olin Program in Law & Economics. [Downloadable!]
  6. Nancy Gallini & Suzanne Scotchmer, 2003. "Intellectual Property: When is it the Best Incentive System?," Levine's Working Paper Archive 618897000000000532, David K. Levine. [Downloadable!]
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