摘要:

AbstractStochastic simulation is advocated for quantifying the impact of alternative buffer stock levels and storage policies on stabilizing world wheat supplies and for estimating the corresponding benefits and losses to the world economy, to the storage operation itself, to consumers, and to producers. Illustrative runs of the model show that stock levels which are optimal in terms of direct costs and benefits are likely to be too low to afford satisfactory levels of stabilization. However, buffer stock programs operated with insurance‐oriented storage rules could provide satisfactory protection against extreme shortfalls in grain supplies at a reasonably low cost.

ISSN:0002-9092    

DOI:10.2307/1238571

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractSome economists are now urging the use of buffer stocks to help stabilize farm and food prices. Moreover, price stabilization has been shown to be socially beneficial from a theoretical point of view. Our purpose is to analyze the welfare implications of stabilized consumption and production and to compare them with the known implications of stabilized prices. It is shown that stabilized consumption is the least beneficial in its welfare implications. The relation between the gains from stabilization and the size of buffer stocks necessary to achieve stabilization also is analyzed. Finally, the presentation is extended to cover instability due to fluctuations in export demand.

ISSN:0002-9092    

DOI:10.2307/1238572

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractPrice of an input equals the sum of the money values of the input's characteristics to the purchaser; money value of each of an input's characteristics equals the input's yield of the characteristic multiplied by the money value of one unit of the characteristic. Demand for an input is affected by the input's characteristics. The themes are derived from a neoclassical firm model, in which the arguments of the firm's production function are quantities of input characteristics used, and from duals of linear programming blending problems. These themes are used to evaluate corn grades.

ISSN:0002-9092    

DOI:10.2307/1238573

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractThe impacts of socioeconomic characteristics of the household and its constituents on consumption of protein, carbohydrate, fat, vitamin A, calcium, iron, thiamine, and vitamin C were estimated. Data from 6,950 households located in the contiguous states were utilized to specify consumption relationships. Socioeconomic factors considered were: income, degree of urbanization, race, educational attainment of the homemaker, stage of the household in the family life cycle, family size, meal adjustment, and employment status of the homemaker. Income had a positive impact on the consumption of all nutrients except carbohydrate. However, nutrient consumption responsiveness to income was relatively small.

ISSN:0002-9092    

DOI:10.2307/1238574

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractSimulation modelling has attracted considerable farm management research interest in recent years, yet the on‐farm use of simulation models has been limited. A simulation model for hog production has been developed as part of an information system which may assist hog farm managers both in choosing between competing management strategies and also in implementing any chosen plan. The process involved in selecting the most suitable management strategy is illustrated using data from several hog units. The incorporation of the model into an information system ensures that the model is accessible to farm managers and their advisers.

ISSN:0002-9092    

DOI:10.2307/1238575

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractEffects of feed additive restrictions on meat production have been measured in previous studies. An econometric simulation model is used in this study to evaluate the impact of policy alternatives on costs, prices, and net profits in beef, pork, broiler, and turkey production over a ten‐year period. Under the model, all the restrictive policy alternatives produced wholesale price increases. Simulation estimates of price and production cost increases, however, were lower than previous findings. Health risk reductions may be obtainable at a smaller loss in economic efficiency than previously suggested.

ISSN:0002-9092    

DOI:10.2307/1238576

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractThe concepts of the value of information and the value of alternative models are developed and applied to corn response research in Brazil. Soil test information was worth as much as $30 per hectare and the response model employed was worth up to $23 per hectare, but two soil classification models had negative values.

ISSN:0002-9092    

DOI:10.2307/1238577

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

摘要:

AbstractA multiperiod risk‐programming model is developed to evaluate forward contracting and other financial choices for farmers who are subject to market risks and external credit rationing. The model utilizes mean‐variance analysis to derive sets of E‐V efficient growth plans reflecting the influence of contracting on income stability, levels of credit, and income growth. A case farm is used to develop the model's decision elements and to survey the credit responses of lenders to contract choices. Model results indicate that the lenders' credit responses may modify the producer's contracting plans and his rate of income growth.

ISSN:0002-9092    

DOI:10.2307/1238578

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1238579

出版商:Oxford University Press    

年代:1976

数据来源: WILEY

ISSN:0002-9092    

DOI:10.2307/1238580

出版商:Oxford University Press    

年代:1976

数据来源: WILEY