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| Registros recuperados: 38 | |
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| Ahmedov, Zafarbek; Power, Gabriel J.; Vedenov, Dmitry V.; Fuller, Stephen W.; McCarl, Bruce A.; Vadali, Sharada. |
| Traffic flows in the U.S. have been affected by the substantial increase and, as of January 2009, decrease in biofuel production and use. This paper considers a framework to study the effect on grain transportation flows of the 2005 Energy Act and subsequent legislation, which mandated higher production levels of biofuels, e.g. ethanol and biodiesels. Future research will incorporate changes due to the recent economic slowdown. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Ethanol; Biodiesel; Spatial equilibrium; Quadratic programming; Agricultural and Food Policy; Crop Production/Industries; Resource /Energy Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/49837 |
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| Cardenas, Gabriela; Vedenov, Dmitry V.; Houston, Jack E.. |
| Despite the decline of coffee prices during the 1990s, coffee production remains a main economic activity for producers in Southeastern Mexico. This paper analyzes the coffee production system for 24 municipios, or districts, in Veracruz, Mexico during a five-year cropping period (1997-2002). A stochastic frontier approach is used in order to estimate an input distance function and evaluate production efficiency during the period. Factors such as coffee quality and access to markets are tested in terms of their effect on efficiency. The results show the production process in these municipios, as measured by technical efficiency, seems to be stable over time despite of price fluctuations in the global market. Production of staple crops (corn) along with... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/19470 |
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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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| Zhang, Zibin; Vedenov, Dmitry V.; Wetzstein, Michael E.. |
| The U.S. ethanol fuel industry has experienced preferential treatment from federal and state governments ever since the Energy Tax Act of 1978 exempted 10% ethanol/gasoline blend (gasohol) from the federal excise tax. Combined with a 54¢/gal ethanol import tariff, this exemption was designed to provide incentives for the establishment and development of a U.S. ethanol industry. Despite these tax exemptions, until recently, the U.S. ethanol fuel industry was unable to expand from a limited regional market. Ethanol was dominated in the market by MTBE (methyl-tertiary-butyl ether). Only after MTBE was found to contaminate groundwater and consequently banned in many states did the demand for ethanol expand nationally. Limit pricing on the part of MTBE... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/34867 |
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| Vedenov, Dmitry V.; Miranda, Mario J.; Dismukes, Robert; Glauber, Joseph W.. |
| The paper presents an economic analysis of the Standard Reinsurance Agreement (SRA), the contract that governs the relationship between the Federal Crop Insurance Corporation and the private insurance companies that deliver crop insurance products to farmers. The paper outlines provisions of the SRA and describes the modeling methodology behind the SRA simulator, a computer program developed to assist crop insurers and policymakers in assessing the economic impact of the Agreement. The simulator is then used to analyze how the SRA affects returns from underwriting crop insurance at various levels of aggregation. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2004 |
URL: http://purl.umn.edu/20345 |
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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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| 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.; 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.. |
| The present paper describes the assumptions and modeling structure behind the SRA simulator, a user-friendly computer program developed in cooperation with RMA as a tool to assist policymakers in assessing the economic impact of the Standard Reinsurance Agreement. The simulator uses the historical data on yields, prices, and insurance losses for each district, crop, and insurance product in order to simulate a distribution of the book of business resulting from underwriting crop insurance either in aggregate or for a specific company. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Farm Management. |
| Ano: 2002 |
URL: http://purl.umn.edu/19720 |
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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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