Attribution and other problems in assessing the returns to agricultural R&D
Estimated rates of return to research are distorted by problems of attributing the credit for particular research results, or for particular research-induced productivity increases, among research expenditures undertaken at different times, in different places, and by different agencies. A comprehensive assessment of the evidence from past economic evaluations of the returns to agricultural R&D indicates that studies generally report high rates of return, with enormous variation among studies, but that much of this evidence has been tainted by inadequate attention to attribution problems. This paper raises these concerns in a general way and illustrates their importance with reference to two particular types of attribution problem. First, we consider the problem of accounting for locational spillovers in attributing varietal-improvement technology among research performers, using US wheat varieties as an example. Second, we consider the temporal aspects of the attribution problem using the specification of research lags in econometric models to illustrate the problem of attributing aggregate productivity gains to research expenditures made at different times. © 2001 Elsevier Science B.V. All rights reserved.
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- Zvi Griliches, 1963. "The Sources of Measured Productivity Growth: United States Agriculture, 1940-60," Journal of Political Economy, University of Chicago Press, vol. 71, pages 331.
- D. Schimmelpfennig & C. Thirtle, 1994. "Cointegration, And Causality: Exploring The Relationship Between Agricultural And Productivity," Journal of Agricultural Economics, Wiley Blackwell, vol. 45(2), pages 220-231.
- Jeffrey S. Davis, 1980. "A note on the use of Alternative lag structures For research expenditure in aggregate production function models," Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, Canadian Agricultural Economics Society/Societe canadienne d'agroeconomie, vol. 28(2), pages 72-76, 07.
- Shu-Yu Huang & Richard J. Sexton, 1996. "Measuring Returns to an Innovation in an Imperfectly Competitive Market: Application to Mechanical Harvesting of Processing Tomatoes in Taiwan," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(3), pages 558-571.
- Oehmke, James F., 1988. "The Calculation of Returns to Research in Distorted Markets," Agricultural Economics of Agricultural Economists, International Association of Agricultural Economists, vol. 2(4), December.
- Huffman, Wallace & Evenson, Robert E., 1992. "Contributions of Public and Private Science and Technology to U.S. Agricultural Productivity," Staff General Research Papers 10990, Iowa State University, Department of Economics.
- Leiby, James D. & Adams, Gregory D., 1991. "The Returns To Agricultural Research In Maine: The Case Of A Small Northeastern Experiment Station," Northeastern Journal of Agricultural and Resource Economics, Northeastern Agricultural and Resource Economics Association, vol. 20(1), April.
- Alston, Julian M. & Pardey, Philip G. & Taylor, Michael J. (ed.), 2001. "Agricultural science policy: Changing global agendas," IFPRI books, International Food Policy Research Institute (IFPRI), number 0-8018-6604-9, May.
- Alston, Julian M. & Craig, Barbara J. & Pardey, Philip G., 1998. "Dynamics in the creation and depreciation of knowledge, and the returns to research:," EPTD discussion papers 35, International Food Policy Research Institute (IFPRI).
- Binenbaum, Eran & Pardey, Philip G. & Zambrano, Patricia & Nottenburg, Carol & Wright, Brian D., 2000. "South-North trade, intellectual property jurisdictions, and freedom to operate in agricultural research on staple crops:," EPTD discussion papers 70, International Food Policy Research Institute (IFPRI).
- Charles L. Ballard & Don Fullerton, 1990.
"Distortionary Taxes and the Provision of Public Goods,"
NBER Working Papers
3506, National Bureau of Economic Research, Inc.
- Charles L. Ballard & Don Fullerton, 1992. "Distortionary Taxes and the Provision of Public Goods," Journal of Economic Perspectives, American Economic Association, vol. 6(3), pages 117-131, Summer.
- Zvi Griliches, 1998.
"Issues in Assessing the Contribution of Research and Development to Productivity Growth,"
in: R&D and Productivity: The Econometric Evidence, pages 17-45
National Bureau of Economic Research, Inc.
- Zvi Griliches, 1979. "Issues in Assessing the Contribution of Research and Development to Productivity Growth," Bell Journal of Economics, The RAND Corporation, vol. 10(1), pages 92-116, Spring.
- Barbara J. Craig & Philip G. Pardey, 1996. "Productivity Measurement in the Presence of Quality Change," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(5), pages 1349-1354.
- Oehmke, James F., 1988. "The calculation of returns to research in distorted markets," Agricultural Economics, Blackwell, vol. 2(4), pages 291-302, December.
- Richard K. Perrin & Lilyan E. Fulginiti, 1996. "Productivity Measurement in the Presence of “Poorly Priced” Goods," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(5), pages 1355-1359.
- A. K. Enamul Haque & Glenn Fox & George L. Brinkman, 1989. "Product Market Distortions and the Returns to Federal Laying-Hen Research in Canada," Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, Canadian Agricultural Economics Society/Societe canadienne d'agroeconomie, vol. 37(1), pages 29-46, 03.
- Huffman, Wallace E. & Evenson, Robert E., 1993.
"Science for Agriculture: A Long Term Perspective,"
Staff General Research Papers
10997, Iowa State University, Department of Economics.
- Evenson, R.E. & Johnson, D.K.N., 1998.
"R&D Spillovers to Agriculture: Measurement and Application,"
98-01, Wellesley College - Department of Economics.
- Daniel K. N. Johnson & Robert E. Evenson, 1999. "R&D Spillovers To Agriculture: Measurement And Application," Contemporary Economic Policy, Western Economic Association International, vol. 17(4), pages 432-456, October.
- Huffman, Wallace & Evenson, Robert E., 1989. "Supply and Demand Functions for Multiproduct U.S. Cash Grain Farms: Biases Caused by Research and Other Policies," Staff General Research Papers 10985, Iowa State University, Department of Economics.
- Griliches, Zvi, 1974. "Errors in Variables and Other Unobservables," Econometrica, Econometric Society, vol. 42(6), pages 971-98, November.
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