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| Registros recuperados: 43 | |
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| Meyer-Aurich, Andreas; Weersink, Alfons; Jayasundara, Susantha; Wagner-Riddle, Claudia. |
| Best management practices (BMPs) for cropping systems that involve conservation tillage and nutrient management are proposed as potential win-win solutions for both farmers and the environment. While originally targeted as a means for improving soil and water quality, these BMPs may also contribute to the mitigation of greenhouse gases (GHGs). Mitigation efforts have focused primarily on the ability of BMPs to sequester carbon and the subsequent potential revenue source carbon sequestration may represent to farmers. Increasingly, evidence from experimental stations calls into question the potential for C-sequestration with reduced tillage in soils in Eastern Canada. However, there are other ways in which BMPs can reduce GHG emissions: lowering fuel and... |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy; Farm Management. |
| Ano: 2004 |
URL: http://purl.umn.edu/45987 |
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| Pannell, David J.; Hailu, Getu; Weersink, Alfons; Burt, Amanda. |
| The use by farmers of futures contracts and other hedging instruments has been observed to be low in many situations, and this has sometimes seemed to be considered surprising or even mysterious. We propose that it is, in fact, readily understandable and consistent with rational decision making. Standard models of the decision about optimal hedging show that it is negatively related to basis risk, to quantity risk, and to transaction costs. Farmers who have less uncertainty about prices have a lower optimal level of hedging. If a farmer has optimistic price expectations relative to the futures market, the incentive to hedge can be greatly reduced. And finally, farmers who have low levels of risk aversion have little to gain from hedging in terms of risk... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Hedging; Risk; Risk aversion; Flat payoff functions; Agricultural Finance. |
| Ano: 2007 |
URL: http://purl.umn.edu/9232 |
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| Chi, Junwook; Weersink, Alfons; Vanleeuwen, John A.; Keefe, Gregory P.. |
| Cost effective disease control on the dairy farm can enhance productivity and subsequently profitability. Previous economic studies on animal disease have focused on production losses and evaluation of disease eradication programs and provided little guidance as to the optimal prevention action. This paper presents a theoretical model on the economics of livestock disease and develops an empirical model to determine the optimal set of control strategies for four production limiting cattle diseases: bovine viral diarrhea (BVD), enzootic bovine leukosis (EBL), Johne's Disease (JD) and neosporosis. Control functions indicating the prevalence of infection with each of the four diseases for each of the ten strategies are estimated. The optimal strategies... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Farm Management; Livestock Production/Industries. |
| Ano: 2001 |
URL: http://purl.umn.edu/34119 |
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| Tauer, Loren W.; Weersink, Alfons. |
| A model is developed that shows the usefulness of dynamic optimization in deriving optimal equity recovery strategies for a cooperative lending institution. The objective is to minimize the cost of a member borrowing over time. An interest rate surcharge, above the cost of funds and operating cost, is the control variable to be determined. The financial position of the cooperative is described by equity and loan volume, which are the state variables. Applications show how the surcharge, loans, and equity change over time as model parameters are changed. |
| Tipo: Journal Article |
Palavras-chave: Agribusiness; Agricultural Finance. |
| Ano: 1988 |
URL: http://purl.umn.edu/46210 |
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| Weersink, Alfons. |
| The robustness of dynamic dual models examined by Howard and Shumway is reevaluated with the proper specification for the modified generalized Leontief (GL) and normalized quadratic (NQ) functional forms. In an application to the Northeastern and U.S. dairy industries, the theoretical properties, adjustment rates, and predictive ability were similar under both functional forms. However, elasticity measures differed significantly. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/28964 |
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| Getu, Hailu; Weersink, Alfons. |
| Over the years, critics have argued that futures market prices have been either too low or too high. Speculators have often been the target for the wrath of those feeling the futures price does not properly reflect market fundamentals. Recently, the criticism has been vented toward a new type of speculator that has been blamed for the dramatic changes in agricultural commodity prices experienced over the last several years. Commodity index traders (CITs) and other large institutional traders are commonly accused of exerting a destabilizing influence on commodity prices. The intensity of the debate over the role of CITs appeared to wane with the reduction in commodity prices since 2008 but the recent release of a well-publicized OECD report on the issue by... |
| Tipo: Report |
Palavras-chave: Commodity; Index futures; Trading; Volatility; Agribusiness; Agricultural and Food Policy; Demand and Price Analysis; Marketing. |
| Ano: 2010 |
URL: http://purl.umn.edu/95803 |
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| Weersink, Alfons; Joseph, Stanley; Kay, Beverly D.; Turvey, Calum G.. |
| The objective of the 1997 Kyoto agreement was to limit greenhouse gas (GHG) emissions among signatory countries and thereby slow global warming. Under the agreement, Canada has committed itself to reduce GHGs over the next decade by 6 percent from estimated 1990 levels. Debate has now begun on the appropriate government policies that will induce the desired GHG reductions. Regulations could be in the form of direct controls or economic incentives, such as a subsidy/tax system or an emission trading system. The success of the U.S. emission market for SO2 (Schmalenseeet al., 1998) has generated growing interest in the use of a similar market mechanism for carbon (Holmes and Friedman, 2000). The existence of a carbon credit market presents the agricultural... |
| Tipo: Journal Article |
Palavras-chave: Agricultural and Food Policy; Farm Management. |
| Ano: 2003 |
URL: http://purl.umn.edu/45728 |
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| Yiridoe, Emmanuel K.; Weersink, Alfons. |
| Cost-effectiveness is an important consideration in evaluating choices for meeting environmental quality objectives. Estimated crop yield response functions and the associated groundwater-nitrate pollution production functions were used to evaluate the optimal N fertilization and on-farm abatement costs for alternative cropping systems, with management choices at both the intensive and extensive margins. The cost-effective corn production system, which meets the Health Canada standard for nitrates with the highest returns ($278 ha-1) and lowest on-farm abatement cost ($248 ha-1), was a four-year corn-corn-soybean-wheat rotation under conventional tillage. At contaminant limits above the Health Canada standard, the cost-effective wheat cropping system... |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy; Farm Management. |
| Ano: 1998 |
URL: http://purl.umn.edu/31515 |
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| Weersink, Alfons; Stauber, Steve. |
| A stochastic dynamic programming model is developed to determine optimal replacement intervals and depreciation schedules for a combine on a cash grain farm in north central Montana, where the optimal decision is based on the stochastic nature of winter wheat prices. Empirical results indicate that the decision varies widely depending on the states describing the conditions facing the farm firm. Under normal profitable conditions and ERTA81 tax legislation, suggested replacement is after five years of service, the new asset being depreciated under the accelerated cost recovery system and the investment credit option. Changes to the tax law would tend to smooth out and increase this replacement interval. |
| Tipo: Journal Article |
Palavras-chave: Agricultural Finance; Farm Management. |
| Ano: 1988 |
URL: http://purl.umn.edu/32156 |
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| Vera-Toscano, Esperanza; Phimister, Euan; Weersink, Alfons. |
| Using data from the Canadian Survey of Labour and Income Dynamics (SLID) for the period 1993-1996, we examine patterns and determinants of labour force transitions of adequately employed and underemployed workers in an attempt to explore whether employment dynamics significantly differ between rural and urban workers so as to disadvantage rural economic performance. The results indicate that rural underemployed workers in Canada are, in the short run (year-to-year transitions) equally likely to enter adequate employment as adequately employed individuals are to enter underemployment. Further, we also found there is weak evidence that education level of rural workers has a lower impact on the probability of moving out of underemployment than in urban... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Community/Rural/Urban Development; Labor and Human Capital. |
| Ano: 2002 |
URL: http://purl.umn.edu/34143 |
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| Registros recuperados: 43 | |
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