IDEAS home Printed from
   My bibliography  Save this paper

A Stochastic Life Cycle Model of Academic Research and Patent Licensing


  • Richard Jensen

    () (Department of Economics, University of Notre Dame)


We extend the literature on life cycle behavior of faculty researchers by assuming two knowledge stocks, scientific (free to all) and patentable (appropriable). Faculty derive utility from research effort, leisure, prestige in knowledge accumulation, and income. Faculty with a strong preference for one type of research tend to devote more time to it, but if the knowledge stock associated with it grows fast enough, then they reallocate time from more or less preferred research later in the life cycle. Both knowledge stocks matter to utility, so if one grows sufficiently larger, the marginal utility from an increase in the other becomes greater, implying this time reallocation. An increase in license income, such as from the Bayh-Dole Act, increases in time in applied research, but faculty do this by decreasing their time in leisure first, then their time in basic research. Thus, the scientific knowledge stock is not always smaller as a result of this type of legislation. The primary effect of spillovers of the Pasteur's Quadrant type is to increase the scientific knowledge stock, but faculty effort in basic research need not decrease, and may increase.

Suggested Citation

  • Richard Jensen, 2011. "A Stochastic Life Cycle Model of Academic Research and Patent Licensing," Working Papers 008, University of Notre Dame, Department of Economics, revised Sep 2011.
  • Handle: RePEc:nod:wpaper:008

    Download full text from publisher

    File URL:
    File Function: First version, 2011
    Download Restriction: no

    References listed on IDEAS

    1. Franco Modigliani & Shi Larry Cao, 2004. "The Chinese Saving Puzzle and the Life-Cycle Hypothesis," Journal of Economic Literature, American Economic Association, vol. 42(1), pages 145-170, March.
    2. Nir Jaimovich & Henry E. Siu, 2009. "The Young, the Old, and the Restless: Demographics and Business Cycle Volatility," American Economic Review, American Economic Association, vol. 99(3), pages 804-826, June.
    3. S.K. Bhutani, 2009. "China and India," India Quarterly: A Journal of International Affairs, , vol. 65(4), pages 383-391, October.
    4. Krueger, Dirk & Ludwig, Alexander, 2007. "On the consequences of demographic change for rates of returns to capital, and the distribution of wealth and welfare," Journal of Monetary Economics, Elsevier, vol. 54(1), pages 49-87, January.
    5. DennisTao Yang & VivianWeijia Chen & Ryan Monarch, 2010. "Rising Wages: Has China Lost Its Global Labor Advantage?," Pacific Economic Review, Wiley Blackwell, vol. 15(4), pages 482-504, October.
    6. Zheng Song & Kjetil Storesletten & Yikai Wang & Fabrizio Zilibotti, 2015. "Sharing High Growth across Generations: Pensions and Demographic Transition in China," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(2), pages 1-39, April.
    7. Charles Yuji Horioka & Junmin Wan, 2007. "The Determinants of Household Saving in China: A Dynamic Panel Analysis of Provincial Data," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(8), pages 2077-2096, December.
    8. Chadwick C. Curtis & Steven Lugauer & Nelson C. Mark, 2015. "Demographic Patterns and Household Saving in China," American Economic Journal: Macroeconomics, American Economic Association, vol. 7(2), pages 58-94, April.
    9. Marcos D. Chamon & Eswar S. Prasad, 2010. "Why Are Saving Rates of Urban Households in China Rising?," American Economic Journal: Macroeconomics, American Economic Association, vol. 2(1), pages 93-130, January.
    10. repec:wly:jmoncb:v:49:y:2017:i:4:p:635-661 is not listed on IDEAS
    11. Horioka, Charles Yuji & Terada-Hagiwara, Akiko, 2012. "The determinants and long-term projections of saving rates in Developing Asia," Japan and the World Economy, Elsevier, vol. 24(2), pages 128-137.
    12. Choi, Horag & Mark, Nelson C. & Sul, Donggyu, 2008. "Endogenous discounting, the world saving glut and the U.S. current account," Journal of International Economics, Elsevier, vol. 75(1), pages 30-53, May.
    13. Chang-Tai Hsieh & Peter J. Klenow, 2009. "Misallocation and Manufacturing TFP in China and India," The Quarterly Journal of Economics, Oxford University Press, vol. 124(4), pages 1403-1448.
    14. Shang-Jin Wei & Xiaobo Zhang, 2011. "The Competitive Saving Motive: Evidence from Rising Sex Ratios and Savings Rates in China," Journal of Political Economy, University of Chicago Press, vol. 119(3), pages 511-564.
    15. Chamon, Marcos & Liu, Kai & Prasad, Eswar, 2013. "Income uncertainty and household savings in China," Journal of Development Economics, Elsevier, vol. 105(C), pages 164-177.
    16. Barro, Robert J & Becker, Gary S, 1989. "Fertility Choice in a Model of Economic Growth," Econometrica, Econometric Society, vol. 57(2), pages 481-501, March.
    17. Zuliu F. Hu & Mohsin S. Khan, 1997. "Why Is China Growing So Fast?," IMF Staff Papers, Palgrave Macmillan, vol. 44(1), pages 103-131, March.
    18. Chadwick Curtis, 2016. "Economic Reforms and the Evolution of China's Total Factor Productivity," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 21, pages 225-245, July.
    19. Robert Shimer, 2001. "The Impact of Young Workers on the Aggregate Labor Market," The Quarterly Journal of Economics, Oxford University Press, vol. 116(3), pages 969-1007.
    20. Steven Lugauer, 2012. "Estimating the Effect of the Age Distribution on Cyclical Output Volatility Across the United States," The Review of Economics and Statistics, MIT Press, vol. 94(4), pages 896-902, November.
    21. Charles Yuji Horioka, 2010. "Aging And Saving In Asia," Pacific Economic Review, Wiley Blackwell, vol. 15(1), pages 46-55, February.
    22. Orazio P. Attanasio & Agar Brugiavini, 2003. "Social Security and Households' Saving," The Quarterly Journal of Economics, Oxford University Press, vol. 118(3), pages 1075-1119.
    23. James Feyrer, 2007. "Demographics and Productivity," The Review of Economics and Statistics, MIT Press, vol. 89(1), pages 100-109, February.
    24. Kaiji Chen & Ayşe İmrohoroğlu & Selahattin İmrohoroğlu, 2007. "The Japanese saving rate between 1960 and 2000: productivity, policy changes, and demographics," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 32(1), pages 87-104, July.
    25. Hans Fehr & Sabine Jokisch & Laurence J. Kotlikoff, 2007. "Will China Eat Our Lunch or Take Us to Dinner? Simulating the Transition Paths of the United States, the European Union, Japan, and China," NBER Chapters,in: Fiscal Policy and Management in East Asia, NBER-EASE, Volume 16, pages 133-193 National Bureau of Economic Research, Inc.
    26. Chadwick C. Curtis & Nelson Mark, 2010. "Business Cycles, Consumption and Risk-Sharing: How Different Is China?," NBER Working Papers 16154, National Bureau of Economic Research, Inc.
    27. Selo Imrohoroglu & Kaiji Chen & Ayse Imrohoroglu, 2005. "Japanese Saving Rate," 2005 Meeting Papers 747, Society for Economic Dynamics.
    28. Gregory C. Chow, 1993. "Capital Formation and Economic Growth in China," The Quarterly Journal of Economics, Oxford University Press, vol. 108(3), pages 809-842.
    29. Ferrero, Andrea, 2010. "A structural decomposition of the U.S. trade balance: Productivity, demographics and fiscal policy," Journal of Monetary Economics, Elsevier, vol. 57(4), pages 478-490, May.
    30. Horag Choi & Nelson C. Mark, 2009. "Trending Current Accounts," NBER Working Papers 15244, National Bureau of Economic Research, Inc.
    31. Rodolfo E. Manuelli & Ananth Seshadri, 2009. "Explaining International Fertility Differences," The Quarterly Journal of Economics, Oxford University Press, vol. 124(2), pages 771-807.
    32. Horag Choi & Steven Lugauer & Nelson C. Mark, 2017. "Precautionary Saving of Chinese and U.S. Households," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 49(4), pages 635-661, June.
    33. Loukas Karabarbounis & Brent Neiman, 2012. "Declining Labor Shares and the Global Rise of Corporate Saving," NBER Working Papers 18154, National Bureau of Economic Research, Inc.
    Full references (including those not matched with items on IDEAS)


    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.

    Cited by:

    1. Haeussler, Carolin & Sauermann, Henry, 2013. "Credit where credit is due? The impact of project contributions and social factors on authorship and inventorship," Research Policy, Elsevier, vol. 42(3), pages 688-703.

    More about this item


    Academic Research; Life Cycle; Knowledge Production;

    JEL classification:

    • D - Microeconomics
    • L - Industrial Organization


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nod:wpaper:008. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Terence Johnson). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.