IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Measuring Public Agricultural Research Capital and Its Contribution to State Agricultural Productivity

  • Huffman, Wallace

A methodology for measuring public agricultural research capital is developed and described for the first time, new public agricultural research capital measures for each of the 48 contiguous US states, 1970-1999, are presented, and a new econometric analysis of the contribution of public agricultural research capital to state agricultural productivity is reported. Public agricultural research capital across the states is shown to have five different growth patterns, only one of which is at a constant rate. New TFP results show that public agricultural research capital contributes significantly to agricultural productivity and is larger than previous estimates. Intrastate and spillin public agricultural research capital are shown to be complementary, but private agricultural research capital and public extension are substitutes. The marginal social rate of return to public agricultural, including significant interstate spillovers, is large which has science policy implications.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

Paper provided by Iowa State University, Department of Economics in its series Staff General Research Papers with number 13123.

in new window

Date of creation: 02 Nov 2009
Date of revision:
Handle: RePEc:isu:genres:13123
Contact details of provider: Postal: Iowa State University, Dept. of Economics, 260 Heady Hall, Ames, IA 50011-1070
Phone: +1 515.294.6741
Fax: +1 515.294.0221
Web page:

More information through EDIRC

References listed on IDEAS
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.:

as in new window
  1. Evenson, Robert E., 2001. "Economic impacts of agricultural research and extension," Handbook of Agricultural Economics, in: B. L. Gardner & G. C. Rausser (ed.), Handbook of Agricultural Economics, edition 1, volume 1, chapter 11, pages 573-628 Elsevier.
  2. Alston, Julian M. & Pardey, Philip G., 2001. "Attribution and other problems in assessing the returns to agricultural R&D," Agricultural Economics, Blackwell, vol. 25(2-3), pages 141-152, September.
  3. V. Eldon Ball & Frank M. Gollop & Alison Kelly-Hawke & Gregory P. Swinand, 1999. "Patterns of State Productivity Growth in the U.S. Farm Sector: Linking State and Aggregate Models," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 81(1), pages 164-179.
  4. Giancarlo Moschini & Harvey Lapan & Andrei Sobolevsky, 2000. "Roundup ready� soybeans and welfare effects in the soybean complex," Agribusiness, John Wiley & Sons, Ltd., vol. 16(1), pages 33-55.
  5. Moschini, GianCarlo & Lapan, Harvey E., 1999. "Intellectual Property Rights and the Welfare Effects of Agricultural R&D," Staff General Research Papers 1735, Iowa State University, Department of Economics.
  6. Khanna, J. & Huffman, Wallace & Sandler, T., 1994. "Agricultural Research Expenditures in the United States: A Public Goods Perspective," Staff General Research Papers 10994, Iowa State University, Department of Economics.
  7. Birgitte Andersen (ed.), 2006. "Intellectual Property Rights," Books, Edward Elgar, number 3747, April.
  8. José Benjamin Falck-Zepeda & Greg Traxler & Robert G. Nelson, 2000. "Surplus Distribution from the Introduction of a Biotechnology Innovation," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 82(2), pages 360-369.
  9. 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).
  10. Huffman, Wallace, 2006. "Economics of Intellectual Property Rights in Plant Materials," Staff General Research Papers 12583, Iowa State University, Department of Economics.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:isu:genres:13123. 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: (Curtis Balmer)

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.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with 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 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.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.