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Registros recuperados: 284
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Recherche et dosage de quelques antiseptiques dans les semi-conserves de poisson. ArchiMer
Fougeras Lavergnolle, Jean.
Tipo: Text Palavras-chave: Risk; Antiseptic; Preserve; Proportion; Research; Risques; Antiseptiques; Conservation; Dosage; Recherche.
Ano: 1972 URL: http://archimer.ifremer.fr/doc/1972/publication-2070.pdf
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Portfolio Choice with Uncertain Consumption Prices: a mean-variance approch AgEcon
Berck, Peter; Cecchetti, Stephen G..
This paper presents a mean-variance model of portfolio choice and asset pricing when the price of consumption goods as well as the return to assets is uncertain. The correlation of an assets return with purchases at expected prices is shown to reduce both the mean return and the variance of the return of an asset. A numerical approximation is computed to check the accuracy of the mean and variance approximation. Uncertainty of consumption prices is shown to result in long (or speculative) futures holding.
Tipo: Working or Discussion Paper Palavras-chave: Consumption; Investments; Prices; Risk; Risk and Uncertainty.
Ano: 1980 URL: http://purl.umn.edu/37852
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Portfolio Theory and the Demand for Futures: theory and the case of California cotton AgEcon
Berck, Peter.
Tipo: Working or Discussion Paper Palavras-chave: Cotton trade; Future trading; Futures market; Investments; Risk.
Ano: 1980 URL: http://purl.umn.edu/37706
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The general equilibrium effects of a minimum wage on training AgEcon
Perloff, Jeffrey M..
Tipo: Working or Discussion Paper Palavras-chave: Job methods training; Minimum wages; Production (economics); Risk; Wages; Labor and Human Capital.
Ano: 1981 URL: http://purl.umn.edu/47005
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An Equilibrium Approach to the Theory of Futures Markets AgEcon
Berck, Peter; Cecchetti, Stephen G..
Tipo: Working or Discussion Paper Palavras-chave: Future trading; Investments; Risk.
Ano: 1981 URL: http://purl.umn.edu/42847
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A modern view of Joseph's policy: food stocks as financial assets AgEcon
Adelman, Irma; Berck, Peter.
Tipo: Working or Discussion Paper Palavras-chave: Food consumption; Mathematical models; Price stabilization; Prices; Risk; Supply and demand.
Ano: 1989 URL: http://purl.umn.edu/43666
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Food security policy in a stochastic world AgEcon
Adelman, Irma; Berck, Peter.
Food security may be increased by variance-reducing strategies, by food aid, or by development strategies. This paper uses a Korea CGE model, subjected to random fluctuation in world-prices and domestic food productivity, to evaluate these policies. We find that poverty-reducing development strategies are the most effective food-security strategies.
Tipo: Working or Discussion Paper Palavras-chave: Agricultural policies; Food aid; Prices; Risk; Stochastic models.
Ano: 1989 URL: http://purl.umn.edu/43664
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Reduction of Yield and Income Risk Under Alternative Crop Insurance and Disaster Assistance Plans AgEcon
Carriker, Gordon L.; Williams, Jeffery R.; Barnaby, Glenn Arthur, Jr.; Black, J. Roy.
This study compares the effectiveness of five crop insurance/disaster assistance plans: an individual farm yield insurance plan similar to the current FCIC multi-peril program ; two area yield insurance plans; a farm yield disaster assistance plan; and an area yield disaster assistance plan. These methods are examined for reduction in yield and gross income variability with and without participation in the government deficiency payment programs using farm-level yield data from 98 dryland wheat farms and 38 dryland corn farms in Kansas . Although individual farm yield insurance is complex, suffers from moral hazard and adverse selection problems, and is likely to be the most expensive to administer , it provides more yield and gross income risk reduction...
Tipo: Working or Discussion Paper Palavras-chave: Crop Insurance; Crop Disaster Assistance; Risk; Wheat; Corn; Risk and Uncertainty.
Ano: 1990 URL: http://purl.umn.edu/118191
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Financial considerations of public inventory holdings in developing countries AgEcon
Adelman, Irma; Berck, Peter.
Tipo: Working or Discussion Paper Palavras-chave: Consumption; Investments; Public finance; Risk.
Ano: 1991 URL: http://purl.umn.edu/43739
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Resource management under uncertainty: some informational issues AgEcon
Berck, Peter.
Tipo: Working or Discussion Paper Palavras-chave: Forest products; Forestry; Natural resources; Risk.
Ano: 1992 URL: http://purl.umn.edu/43742
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Factor Input Demand Subject to Economic and Environmental Risk: The Case of Nitrogen Fertilizer in Corn Production AgEcon
Carriker, Gordon L..
Nitrogen (N) fertilizer demand in relation to economic and environmental risks associated with N-fertilizer management are examined. Both nominal and environmental damage-adjusted net returns distributions are evaluated using stochastic dominance analysis. Results suggest that, in the absence of environmental risk, N demand becomes more elastic as farmers become more risk averse. When environmental risk is introduced to the decision-making process, N demand becomes even more elastic.
Tipo: Working or Discussion Paper Palavras-chave: Environmental damage; Factor input demand; Nitrogen fertilizer management; Risk; Stochastic dominance; Crop Production/Industries; Environmental Economics and Policy.
Ano: 1993 URL: http://purl.umn.edu/118154
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RISK PREFERENCES AND CONTRACTING IN THE U.S. HOG INDUSTRY AgEcon
Johnson, C. Scott; Foster, Kenneth A..
Much of the increase use of vertical coordination in the U.S. swine industry has taken place through contract production. While the incidence of contracting is much higher in nontraditional hog production areas, a growing number of Midwestern producers are being faced with contract options. A variety of contractual arrangements are available through feed companies, integrators, genetics firms, and packers. However, little is known about the profitability and risk characteristics of these alternatives. This research suggests that risk neutral producers in the Midwest would prefer independent production, and risk averse producers would prefer to choose among the various types of coordination arrangements.
Tipo: Journal Article Palavras-chave: Stochastic dominance; Risk; Contract production; Swine; Livestock Production/Industries.
Ano: 1994 URL: http://purl.umn.edu/15166
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THE VALUE OF PLANTING FLEXIBILITY PROVISIONS IN THE 1990 FARM BILL TO THREE REPRESENTATIVE TEXAS FARMS AgEcon
Chien, Ming-Che; Leatham, David J..
The 1990 Farm Bill reduces deficiency payments but also provides more planting flexibility for program participants. In this study, a mean-standard deviation analysis is used to analyze the impacts of planting flexibility provisions on crop selection decisions, farm returns, and farm risk. Results show that gains from the added planting flexibility do not offset the mandatory loss in the deficiency payments for program participants. Planting flexibility will lead to an increase in corn and wheat planted in the Northern Plains and an increase in cotton planted in the Rolling Plains and Coastal Bend, Texas.
Tipo: Journal Article Palavras-chave: Planting flexibility; Farm programs; Risk; Agricultural and Food Policy; Crop Production/Industries.
Ano: 1994 URL: http://purl.umn.edu/15418
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Cash Wheat Marketing: Strategies for Real People AgEcon
Brorsen, B. Wade; Anderson, Kim B..
A new paradigm is needed in extension marketing programs. Attempts to help producers time the market, either through cask sales or futures trading, appear to be of little benefit. Marketing extension programs need to place less emphasis on outlook and futures trading and more emphasis on simple marketing strategies that people really use. An empirical example of strategies for Oklahoma wheat producers shows selling cash wheat at harvest and participating in government programs as the preferred marketing strategy. Implications for extension programs in other states are that extension programs can help producers decide whether to store their grain and whether to participate in farm programs.
Tipo: Journal Article Palavras-chave: Economics; Efficient markets; Extension; Forward contracts; Hedging; Price analysis; Risk; Stochastic dominance; Agribusiness; Crop Production/Industries; Marketing.
Ano: 1994 URL: http://purl.umn.edu/62351
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Chapter 02: SELF-PROTECTION, RISK INFORMATION, AND EX ANTE VALUES OF FOOD SAFETY AND NUTRITION AgEcon
Eom, Young Sook.
This book was originally published by Westview Press, Boulder CO, 1995.
Tipo: Book Chapter Palavras-chave: Food safety; Nutrition; Risk; Consumer information; Self protection; Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/25985
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ENERGY SUPPLEMENTATION STRATEGIES FOR WHEAT PASTURE STOCKER CATTLE UNDER UNCERTAIN FORAGE AVAILABILITY AgEcon
Coulibaly, Nouhoun; Bernardo, Daniel J.; Horn, Gerald W..
Energy supplementation provides a means of reducing production risk of growing stocker cattle on winter wheat pasture. This study addresses the issue of risk aversion and energy supplement input use. Differences in supplementation practices induced by risk aversion and the effects of cattle and feed market conditions are examined. Results show that supplementation practices are likely to be similar across producers, irrespective of their risk attitudes. Cattle and feed market conditions, however, markedly affect supplementation practices. These findings provide information for assisting stockmen in identifying efficient supplement strategies.
Tipo: Journal Article Palavras-chave: Risk; Wheat pasture grazing; Numerical integration; Energy supplementation; Livestock Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/15244
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VALUING RISK TRADEOFFS AND VOLUNTARY INSECTICIDE REDUCTION AgEcon
Lohr, Luanne; Park, Timothy A.; Higley, Leon.
Farmer's willingness to voluntarily reduce insecticide use is not considered when regulatory approaches to environmental protection are proposed. Regulations that require behavior that would voluntarily be undertaken are excessive and economically inefficient. Using survey data from a contingent valuation scenario, we demonstrate the willingness of crop producers in four Midwestern states in the U.S. to trade yield losses for environmental risk reduction by eliminating an insecticide application. The mean acceptable yield loss for a sample of 1,138 producers in Illinois, Iowa, Nebraska and Ohio is $8.25 per acre. Acceptable yield loss increases with the rated importance of environmental goods (fish, birds, mammals, native plants and endangered species),...
Tipo: Working or Discussion Paper Palavras-chave: Decision models; Agriculture; Environmental protection; Risk; Contingent valuation; Crop Production/Industries; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 1996 URL: http://purl.umn.edu/16671
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Default and Inference Options: Use in Recurrent and Ordinary Risk Decisions AgEcon
Wilson, James D..
How "default options" should be used in health risk assessment divides the risk analysis profession. Some argue that these should be "hard": set by policy, generally biased to be "health protective" and requiring a substantial body of evidence to replace by decision-specific alternatives. Others argue that they should be science-based, identified by consensus of the professional community, replaced by whatever decision-specific information may be available to the analyst. This paper shows that both positions have validity, and that both are incomplete. Each kind of construct has a useful role to play, but in different kinds of decisions. Because the two are different, we suggest giving them different names, "default option" being assigned to the...
Tipo: Working or Discussion Paper Palavras-chave: Risk; Regulation; Decision making; Default options; EPA; FDA; Science; Policy; Public participation; Risk analysis; Risk and Uncertainty.
Ano: 1998 URL: http://purl.umn.edu/10712
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The Demand for Specialty-Crop Insurance: Adverse Selection and Inefficiency AgEcon
Richards, Timothy J.; Mischen, Pamela.
The twin problems of moral hazard and adverse selection are often blamed for the lack of insurance for many fruits and vegetables. This paper develops an alternative method of testing for adverse selection that uses a two-stage approach to determine the effects of technical inefficiency on the demand for insurance. With this approach, technical inefficiency is interpreted as an indicator of adverse selection. Because there is no active insurance market for many specialty crops, and thin markets for those that are insurable, a contingent valuation approach is used to obtain the data necessary to estimate the demand for three different types of insurance. The results suggest adverse selection may be a deterrent to the viability of extending the breadth of...
Tipo: Journal Article Palavras-chave: Contingent valuation; Crop insurance; Fruits and vegetables; Moral hazard; Risk; Uncertainty; Agribusiness; Financial Economics; Risk and Uncertainty.
Ano: 1998 URL: http://purl.umn.edu/90435
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A STOCHASTIC DOMINANCE ANALYSIS OF ALTERNATIVE SUGAR BEET- AND NAVY BEAN- BASED CROP ROTATIONS IN MICHIGAN AgEcon
Gebremedhin, Berhanu; Schwab, Gerald; Harwood, Richard R.; Christenson, Donald; Bricker, Calvin.
Sugar beets (Beta vulgaris L.) and navy beans (Phaseoulus vulgaris L.) have been important target crops in the crop rotation systems of many Michigan growers, particularly in the Saginaw Valley and the Thumb region. The recent decline in sugar beet yields combined with the erratic navy bean yields have led to concern about the optimal crop rotation for the East Central region in Michigan. Risk is an important consideration in a farmer's choice of cropping systems. This study uses 20 years of experimental data from the Michigan State University Saginaw Valley Research Farm to determine the risk efficiency of alternative sugar beet- and navy bean- based crop rotations that included corn (Zea mays L.), oats (Avena sativa L.), and alfalfa (Medicago sativa...
Tipo: Working or Discussion Paper Palavras-chave: Crop rotation; Cropping system; Risk; Stochastic dominance analysis; First-degree stochastic dominance; Second-degree stochastic dominance.; Crop Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/11509
Registros recuperados: 284
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