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Registros recuperados: 4
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A Globally Flexible Model for Crop Yields Under Weather Risk AgEcon
Cooper, Joseph C.; Wallander, Steven.
The literature on climate change and crop yields recognizes the need to allow for highly non-linear marginal effects. This study combines these two areas of the literature by using Flexible Fourier Transforms (FFT’s) to ensure flexibility for both the time trend and the weather effects. This study also illustrates how FFT’s can be combined with quantile regression (QR) to provide both robustness to outliers and information on the scale effects of time and weather variables. For U.S. county level data on corn, soybeans, and winter wheat, we estimate the relationship between yield and temperature and precipitation using a traditional parametric expected-yield estimator, our quantile-FFT regression evaluated at the median, and our QR-FFT regression that...
Tipo: Conference Paper or Presentation Palavras-chave: Crop yield distributions; Flexible fourier transforms; Quantile regression; Crop Production/Industries; Risk and Uncertainty.
Ano: 2010 URL: http://purl.umn.edu/103560
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Measuring the Impact of the Environmental Quality Incentives Program (EQIP) on Irrigation Efficiency and Water Conservation AgEcon
Wallander, Steven; Hand, Michael S..
Since the passage of the 1996 Farm Act, the Environmental Quality Incentives Program (EQIP) has provided over $10 billion in technology adoption subsidies. One of the national conservation priorities in EQIP is water conservation, but it is not known how participation in EQIP by irrigators affects water application rates and decisions to expand or reduce a farm’s irrigated acreage. Using a farm-level panel data set drawn from three national samples of irrigators taken in 1998, 2003, and 2008, this study provides the first national scale econometric estimates of the changes in water application rates and irrigated acreage that result when a farm receives EQIP payments. Due to a five-fold increase in EQIP funding following the 2002 farm bill, the change in...
Tipo: Conference Paper or Presentation Palavras-chave: EQIP; Irrigation efficiency; Water conservation; Difference-in-differences; Matching estimator; Environmental Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/103269
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The Ethanol Decade: An Expansion of U.S. Corn Production, 2000-09 AgEcon
Wallander, Steven; Claassen, Roger; Nickerson, Cynthia J..
The recent 9-billion-gallon increase in corn-based ethanol production, which resulted from a combination of rising gasoline prices and a suite of Federal bioenergy policies, provides evidence of how farmers altered their land-use decisions in response to increased demand for corn. As some forecasts had suggested, corn acreage increased mostly on farms that previously specialized in soybeans. Other farms, however, offset this shift by expanding soybean production. Farm-level data reveal that the simultaneous net expansion of corn and soybean acreage resulted from a reduction in cotton acreage, a shift from uncultivated hay to cropland, and the expansion of double cropping (consecutively producing two crops of either like or unlike commodities on the same...
Tipo: Report Palavras-chave: Agricultural Resource Management Survey (ARMS); Bioenergy; Ethanol; Indirect effects; Land use; Corn production; Environmental impacts; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/117982
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Where Did the Corn Come From To Fuel the Expansion in Ethanol Production? AgEcon
Wallander, Steven; Claassen, Roger; Nickerson, Cynthia J..
Tipo: Article Palavras-chave: Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2011 URL: http://purl.umn.edu/121024
Registros recuperados: 4
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