PHDBA602 (Innovation Models)

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PHDBA602 is a (for credit) Directed Studies course, that doctoral students can use to develop their own courses with a professor. This page provides information about a directed study course with Michael Katz on that centers around economic models of innovation.


The format is:

  • One, perhaps two, models per class
  • One class per week, with a timeslot TBD.
  • The student will write up the model ahead of time (on this wiki)
  • The class will be used to:
    • Discuss the intricacies of the model
    • Discuss modelling choices, with a view to helping the student understand how to build models
    • Place the model in the context of the broader literature


Patent Races

  • Reinganum, Jennifer F. (1989), "Chapter 14 The timing of innovation: Research, development, and diffusion", In: Richard Schmalensee and Robert Willig, Editor(s), Handbook of Industrial Organization, Elsevier, Volume 1, Pages 849-908. (pdf)

Endogenous Spillovers

  • Spence, Michael (1984), "Cost Reduction, Competition, and Industry Performance', Econometrica, Vol. 52, No. 1 (Jan.), pp. 101-122 (pdf)
  • Katz, Michael L. (1986), "An Analysis of Cooperative Research and Development", The RAND Journal of Economics, Vol. 17, No. 4 (Winter), pp. 527-543 pdf

Patent Pools

Optimal Design of IP

  • Scotchmer, Suzanne (2004), "Chapter 4: On the Optimal Design of Intellectual Property", in "Innovation and Incentives", First MIT Press, ISBN-13: 978-0-262-19515-7

Cummulative Innovation

  • Scotchmer, Suzanne (2004), "Chapter 5: Standing on the Shoulders of Giants: Protecting Cummulative Innovators", in "Innovation and Incentives", First MIT Press, ISBN-13: 978-0-262-19515-7

Licensing and Joint Ventures

  • Scotchmer, Suzanne (2004), "Chapter 6: Licensing, Joint Ventures and Competition Policy", in "Innovation and Incentives", First MIT Press, ISBN-13: 978-0-262-19515-7

Open Source


Complementary Markets

Platforms and Two-sided markets


  • Jackson, Matthew O. (2003), "A Survey of Models of Network Formation: Stability and Effciency" in Group Formation in Economics: Networks, Clubs, and Coalitions, edited by Gabrielle Demange and Myrna Wooders, Cambridge University Press pdf