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| Registros recuperados: 38 | |
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| Vedenov, Dmitry V.. |
| This paper presents a copula-based methodology for modeling joint yield distributions. Copulas have been used extensively in financial literature, but have not been widely used in agricultural economics and particularly risk management. The copula approach provides a powerful and flexible method to model multivariate distributions and thus go beyond joint normality, regressibility, and mean-variance criterion. Accurate estimation of joint distributions may help to improve the results in the area of risk management and insurance obtained under more limiting assumptions. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6264 |
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| Larsen, Ryan A.; Vedenov, Dmitry V.; Leatham, David J.. |
| As agriculture becomes more industrialized, the role of risk measures such as value-at-risk (VaR) will become more utilized. In this case it was applied to geographical diversification and also modifying the traditional VaR estimation by incorporating a copula dependence parameter into the VaR estimation. In addition, an alternative risk measure was also calculated, CVaR. The CVaR, unlike VaR, is a coherent risk measure. Thus it does not suffer from many of the shortcomings of the VaR. The land portfolio consisted of Dryland wheat production acres in Texas, Colorado, and Montana. Three series of net returns were calculated for each region. Based on the VaR and the CVaR, the portfolio was optimized based on minimizing the expected loss based on... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Copula; CVaR; Risk-Management; Geographical Diversification; Agribusiness; Farm Management; Risk and Uncertainty. |
| Ano: 2009 |
URL: http://purl.umn.edu/46763 |
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| Vedenov, Dmitry V.. |
| The paper outlines an approach to estimation of rational expectations acreage response model for US soybeans that explicitly takes into account government payments. Numerical methods are used to recompute the model equilibrium at each iteration of the log-likelihood optimization routine. Estimation results allow one to measure market distortion introduced by the government support programs. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Production Economics. |
| Ano: 2003 |
URL: http://purl.umn.edu/35237 |
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| Vedenov, Dmitry V.; Duffield, James A.; Wetzstein, Michael E.. |
| The hypothesis underlying this analysis is that in the presence of volatile gasoline prices competitive market forces will yield alternative, less volatile fuels as substitutes. A real-option pricing approach was employed for this analysis by modeling investment under uncertainty for the case of comparing stochastic prices of substitute commodities. Based on real options, threshold decision rules were developed for the adoption of portfolio fuels such as ethanol and conventional gasoline blends. Considering this portfolio effect, the benefit-to-cost ratios are above four for the alternative blends under varying discount rates and time horizons. This provides a strong indication that consumer demand exists for these portfolio fuels. Competitive markets will... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/19182 |
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| Vedenov, Dmitry V.; Barnett, Barry J.. |
| This study analyzes efficiency of weather derivatives as primary insurance instruments for six crop reporting districts that are among the largest producers of corn, cotton, and soybeans in the United States. Specific weather derivatives are constructed for each crop/district combination based on analysis of several econometric models. The performance of the designed weather derivatives is then analyzed both in- and out-of-sample. The primary findings suggest that the optimal structure of weather derivatives varies widely across crops and regions, as does the risk-reducing performance of the optimally designed weather derivatives. Further, optimal weather derivatives required rather complicated combinations of weather variables to achieve reasonable fits... |
| Tipo: Journal Article |
Palavras-chave: Agricultural risk management; Crop insurance; Index insurance; Weather derivatives; Risk and Uncertainty. |
| Ano: 2004 |
URL: http://purl.umn.edu/30916 |
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| Zhang, Rui (Carolyn); Houston, Jack E.; Vedenov, Dmitry V.; Barnett, Barry J.. |
| The high proportion of government payments in total crop farm income and the purchase of subsidized crop insurance have changed the income distribution of U.S. crop farmers. As a result, the risk management behaviors of U.S. crop farmers are affected by these programs in terms of the use of private market risk management tools, such as futures and options. The objective of this research is to investigate the effects of the government payments and federal crop insurance policies on the usage of futures and options by crop farmers from a downside risk management perspective. Results in this study suggest that both yield insurance and revenue insurance creates more hedging demands for futures. But revenue insurance decreases the buying of put options at the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural and Food Policy; Agricultural Finance. |
| Ano: 2007 |
URL: http://purl.umn.edu/9911 |
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| Registros recuperados: 38 | |
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