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DESIGNING WETLAND CONSERVATION STRATEGIES UNDER CLIMATE CHANGE AgEcon
Li, Jiayi; Marshall, Elizabeth P.; Shortle, James S.; Ready, Richard C.; Hershner, Carlton.
A methodology for evaluating public wetlands conservation investments that considers climate change is developed and applied to Virginia's Elizabeth River watershed. A revised cellular automaton (CA) model is applied to project future land use change. Discrete stochastic sequential programming (DSSP) is used to model a parcel-based discrete-time decision process.
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/20111
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The Impacts of Adopting Genetically Engineered Crops in the USA: The Case of Bt Corn AgEcon
Fernandez-Cornejo, Jorge; Li, Jiayi.
This paper develops an econometric model to analyze the onfarm impact of adoption of genetically engineered (GE) crops on pesticide use and yields after controlling for other factors. The model, which corrects for self-selection and simultaneity and is consistent with profit maximization, is used to estimate the relationship between Bt corn adoption and insecticide use and yields using data from a nationwide farm survey carried out in 2001. Statistically significant econometric results, controlling for other factors, show a moderate insecticide reduction and a small yield increase associated with adoption of Bt corn relative to using conventional corn varieties in 2001.
Tipo: Conference Paper or Presentation Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2005 URL: http://purl.umn.edu/19318
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