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| Registros recuperados: 30 | |
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| Sundquist, W. Burt; Cheng, Cheng-Ge; Norton, George W.. |
| A wealth of information exists on ex post returns to research investments for agriculture in the aggregate and for several agricultural commodity groups of commercial importance in the United States. Many of the investments made in agricultural research and, consequently, many of the allocative decisions on research funding, are, however, commodity-specific. Probably the main reason for the limited empirical literature on returns to commodity-specific research is that of the limited production input data available for individual commodities. Data from the U.S. Census of Agriculture, for example, do not permit commodity disaggregation beyond that employed by Bredahl and Peterson. Their analysis which utilizes commodity groups including cash crops, dairy,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 1981 |
URL: http://purl.umn.edu/49022 |
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| Sundquist, W. Burt. |
| Contents: Agricultural and Applied Economics at Minnesota in 1979; Rekindling the International Focus: 1979-84; An Increase in State and Local Focus, 1984-1990; Changing Faculty and Programs, 1990-1998; Applied Economics at the Turn of the Century (1998-2000); University of Minnesota Faculty in Agricultural and Applied Economics (1979-2000); New Faculty Appointments in Agricultural and Applied Economics (1979-2000); Faculty Resignations and Retirements in Agricultural and Applied Economics (1979-2000); Recipients of Graduate Degrees with Majors in Agricultural and Applied Economics and in Applied Economics, University of Minnesota, 1980-2000; Course Offerings in Agricultural and Applied Economics, 1979-1981; Course Offerings in Agricultural and Applied... |
| Tipo: Report |
Palavras-chave: Teaching/Communication/Extension/Profession. |
| Ano: 2001 |
URL: http://purl.umn.edu/13007 |
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| Geigel, Joanne M.; Sundquist, W. Burt. |
| The purpose of this paper is the relatively limited one of reviewing the literature for models which develop specific relationships between climatic variables and crop yields. Following a review of recent weather-crop yield modeling efforts we evaluate these models and suggest some conceptual models and data base improvements if we are to adequately project the impacts on crop production of expected future climatic change. Our review and evaluation centers on weather-crop yield models applicable to the central grain belt of the U.S., mainly the Corn Belt and Great Plains production regions. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Crop Production/Industries. |
| Ano: 1984 |
URL: http://purl.umn.edu/13699 |
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| Cooke, Stephen C.; Sundquist, W. Burt. |
| Tornquist input quantity indices were used to derive total and partial factor productivity measures for U.S. cotton across time, region, and scale. Total factor productivity for U.S. cotton increased .2 percent per year between 1974 and 1982. Partial productivity measures revealed that yield growth was about .6 percent and input use grew about .4 percent per year. Cotton enterprises in Alabama and Mississippi gained and those in the Texas High Plains lost competitive advantage relative to California. In 1982, very large (1750-5900 acres) and large (950-1749 acres) cotton enterprises were 2 percent more productive than medium-size enterprises (570-949 acres). |
| Tipo: Journal Article |
Palavras-chave: Productivity Analysis. |
| Ano: 1991 |
URL: http://purl.umn.edu/30305 |
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| Registros recuperados: 30 | |
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