Impact of local public goods on agricultural productivity growth in the U.S
In this paper we revisit the issue on the impact of public R&D expenditure on US agricultural productivity growth. We estimate a dual cost function using a state-by-year panel data set. We construct the potential R&D “spillins” based on both geographical location and production mix. We also examine the role of the extension service, transportation network, and human capital in the process of technology dissemination. The results indicate that higher levels of local public goods, R&D spillins, extension activities, and an intensive transportation network decrease costs. The contributions to agricultural productivity from all series of R&D spillins are positive even though the social rate of return may differ.
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- Huffman, Wallace E. & Ball, E. & Gopinath, M. & Somwaru, A., 2002. "Public R&D and Infrastructure Policies: Effects on Cost of Midwestern Agriculture," Staff General Research Papers 10431, Iowa State University, Department of Economics.
- Ahearn, Mary Clare, 2003. "Trends in Extension Resources," Amber Waves, United States Department of Agriculture, Economic Research Service, April.
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- Alston, Julian M. & Wyatt, T. J. & Pardey, Philip G. & Marra, Michele C. & Chan-Kang, Connie, 2000. "A meta-analysis of rates of return to agricultural R & D: ex pede Herculem?," Research reports 113, International Food Policy Research Institute (IFPRI).
- Ahearn, Mary Clare & Yee, Jet & Bottum, John S., 2003. "Regional Trends In Extension System Resources," Agricultural Information Bulletins 33787, United States Department of Agriculture, Economic Research Service.
- John Mullen, 2007. "Productivity growth and the returns from public investment in R&D in Australian broadacre agriculture," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 51(4), pages 359-384, December.
- Fuglie, Keith O. & Heisey, Paul W., 2007. "Economic Returns to Public Agricultural Research," Economic Brief 6388, United States Department of Agriculture, Economic Research Service.
- 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.
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