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| Kim, Hong Jin; Konyar, Kazim; Sargent, Keith. |
| Bt-corn, a genetically engineered insect resistant variety, has been adopted by almost one-quarter of all corn farmers, resulting in economic impacts on both conventional corn growers and Bt-corn growers. we estimate changes in profits for both types of farmers with different levels of seed premiums, yield increases and adoption rates. We find that Bt-corn growers will see their profits decline when the adoption rate and seed premium are high, if they are not offset by higher yields. Conventional corn growers will always experience a decline in profits because the yield increase from Bt-corn causes corn price to fall. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2002 |
URL: http://purl.umn.edu/19772 |
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| Konyar, Kazim; Knapp, Keith C.. |
| Alfalfa's heavy reliance on irrigation water and its role as an alternate to program crops makes it susceptible to changes in government farm policies. This article presents a dynamic spatial equilibrium model of the California alfalfa market. The model is used to forecast alfalfa acreage, prices paid and received, and transportation flows for the short run and the long run under the base year conditions. The base year results then are compared to a situation of changing demand due to reductions in federal water subsidies and the implementation of a cotton acreage-reduction program. |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy; Crop Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/32500 |
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| Konyar, Kazim; Howitt, Richard E.. |
| This study analyzes the impact of implementing carbon permit trading considered under the Kyoto Protocol, and the subsequent expected increase in energy and resource prices on U.S. crop production. The focus is on input substitution, net farm income, regional crop acreage, and crop prices. The analysis is carried out with a calibrated mathematical programming model which covers the major crops produced in the 48 contiguous states on a regional basis. The model accounts for both the variable inputs and the allocatable inputs of land and irrigation water, and it permits input substitution when farmers are faced with external shocks. The results suggest that when energy prices increase, the net cost to the crop-producing sector depends on the farmer's... |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/30900 |
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