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The Agricultural Knowledge Production Function: An Empirical Look

  • Pardey, Philip G

The research input-output relationship is quantified by use of a unique panel data set of research expenditures (1963-75) and aggregate publication output (1970-75) for each of the 48 contiguous U.S. state agricultural experiment station. Year-to-year fluctuations in research expenditures showed little systematic influence on research output, while on-average or longer-run differences in research expenditures between states appear to influence research performance in a fairly systematic manner. Using citation performance to adjust publication output for differences in scientific quality increases the research expenditure output elasticity by around 25 percent, while also increasing the "mean" agricultural research gestation lag from 2.8 to 3.4 years. Residual state-specific effects, measuring relative research efficiencies, do not appear to be correlated with levels of research expenditures. Copyright 1989 by MIT Press.

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Article provided by MIT Press in its journal Review of Economics & Statistics.

Volume (Year): 71 (1989)
Issue (Month): 3 (August)
Pages: 453-61

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Handle: RePEc:tpr:restat:v:71:y:1989:i:3:p:453-61
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  1. J. A. Hausman, 1976. "Specification Tests in Econometrics," Working papers 185, Massachusetts Institute of Technology (MIT), Department of Economics.
  2. Pakes, Ariel & Nitzan, Shmuel, 1983. "Optimum Contracts for Research Personnel, Research Employment, and the Establishment of "Rival" Enterprises," Journal of Labor Economics, University of Chicago Press, vol. 1(4), pages 345-65, October.
  3. Hansen, W Lee & Weisbrod, Burton A & Strauss, Robert P, 1978. "Modeling the Earnings and Research Productivity of Academic Economists," Journal of Political Economy, University of Chicago Press, vol. 86(4), pages 729-41, August.
  4. Pardey, Philip G., 1986. "Public sector production of agricultural knowledge," Faculty Theses and Dissertations 121800, University of Minnesota, Department of Applied Economics.
  5. Guttman, Joel M, 1978. "Interest Groups and the Demand for Agricultural Research," Journal of Political Economy, University of Chicago Press, vol. 86(3), pages 467-84, June.
  6. Davis, Paul & Papanek, Gustav F, 1984. "Faculty Ratings of Major Economics Departments by Citations," American Economic Review, American Economic Association, vol. 74(1), pages 225-30, March.
  7. Wright, Brian Davern, 1983. "The Economics of Invention Incentives: Patents, Prizes, and Research Contracts," American Economic Review, American Economic Association, vol. 73(4), pages 691-707, September.
  8. Fuller, Wayne A. & Battese, George E., 1974. "Estimation of linear models with crossed-error structure," Journal of Econometrics, Elsevier, vol. 2(1), pages 67-78, May.
  9. Mundlak, Yair, 1978. "On the Pooling of Time Series and Cross Section Data," Econometrica, Econometric Society, vol. 46(1), pages 69-85, January.
  10. McDowell, John M, 1982. "Obsolescence of Knowledge and Career Publication Profiles: Some Evidence of Differences among Fields in Costs of Interrupted Careers," American Economic Review, American Economic Association, vol. 72(4), pages 752-68, September.
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