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151.
This paper sets out the method of compilation of the UK official advertising statistics.  相似文献   
152.
In previous periods when agricultural production was large relative to demand in North America, supply control through limitations in production and markets has been used. Large cropfalls and mammoth international purchases by the USSR during the early 1970s depleted North American grain stocks and caused major supply control programs to vanish. With more favorable worldwide weather, however, grain production and carryover have increased to levels where farmers may demand supply and market controls to improve prices and income. In contrast to conventional models, we make a quantitative analysis for the United States to three tax policies which might be used to restrain production and improve prices and farm income. All tax alternatives do so if the taxes collected by the government are returned to farmers. The tax alternatives examined include a tax on inputs, a gross sales tax, and a tax-in-kind similar to a share rent. The tax policies are applied through an econometric simulation model. Certain limitations of the tax policies are explained. Aux époques antérieures, lorsque la production agricole était grande compareée à la demande dans l'Amérique du Nord, on a contrôlé les stocks de réserve par moyen de limitations de production et de vente. Les récoltes inférieures et les énormes achats par l'URSS pendant la premiére partie des années 70 ont diminué les réserves des céréales de l'Amérique du Nord, ce qui a rendu superflus les programmes majeurs de contrôle. Toutefois, un climat global favorable a augmenté la production et l'accumulation jusqu'au point oú les agriculteurs peuvent considérer nécessaires des contrôles sur la production et la vente afin d'améliorer les prix et leurs revenus. Faisant contraste avec les modéles conventionnels, nous présentons une analyse quantitative pour les Etats-Unis de trois systémes d'impôts qui pourraient etre appliqués pour diminuer la production et pour améliorer les prix et les revenus agricoles. Tous les trois systémes sont effectifs à ce but, pourvu que les impôts perçus par le gouvernement soient rendus aux producteurs. Les alternatifs examinés comprennent un impôt sur les frais de production, un impôt en gros sur les ventes et un systéme d'impôts payables par une quantité des céréales produites, semblable au métayage. Les systémes sont appliqués par moyen d'un modéle de simulation économétrique. Certaines limitations des systémes sont presentées.  相似文献   
153.
    
This study evaluates the impact of conventional cage bans for laying hens in the EU on exports of poultry-keeping equipment. Using detailed data on international trade in poultry-keeping equipment combined with an event study regression approach yields several new findings. The results suggest that the cage bans were associated with an increase in intra-EU trade, and also an increase in exports of poultry equipment from EU member states to non-EU countries where conventional cages are still permitted. The results suggest that some banned cages were likely exported to countries outside the EU to be used in egg production.  相似文献   
154.
Successful policy planning depends to a large extent on being able to predict the consequences of alternative measures. In the case of agriculture, it is important to know how the future pattern of supply and demand in this sector will be affected by government action on specific issues such as farm price support, and by expected trends in macro-economic variables such as national incomes and population. This paper illustrates the application of a model of U.K. agriculture to the projection of changes in the production and consumption of food and agriculture products between now and 1975. The demand projections show the effect of important levies, and of joining the E.E.C, on future expenditure on food, while the supply projections show how the output of a number of agricultural commodities will be affected by adjusting farm prices towards E.E.C. levels.  相似文献   
155.
The policy conclusions which stem from the deterministic theory of the competitive firm are well known and unambiguous. However, once product price is regarded as stochastic, there exist several theories upon which to base an analysis of the impact of agricultural policy on the output response of the firm. The paper considers four models from the safety-first and expected utility frameworks. These models produce a diverse set of comparative statics results which in many instances conflict with those of the deterministic model. Hence, the paper concludes that it is important in agricultural policy analysis that greater consideration by given to the links between risk aversion, policy-induced uncertainty and output response than is conventionally the case.  相似文献   
156.
Risk associated with the adoption of new maize technology and the impact of mandatory cotton production on traditional farmers in the Kasai Oriental Region of Zaire are evaluated within a portfolio context using a quadratic programming model. Seasonal net returns for farm plans including four levels of maize technology in combination with staple food crops are evaluated, with and without mandatory cotton production. The results indicate that cropping systems that include new maize technology are risk-efficient relative to local maize varieties while mandatory cotton production is not risk-efficient at the prevalent price and yield levels in the farming system.  相似文献   
157.
The determination of the price paid to its suppliers and by its customers is a major task for some marketing authorities. The commodity arrives randomly at the authority's facility and is removed randomly by customers. Between arrival and departure, the commodity awaits processing, is processed (graded, packed), and awaits removal by a customer. It is suggested that this similarity to a queue enables a profit function, dependent on price, to be constructed. Determination of the price maximising this function is seen to be one solution to the price setting problem.  相似文献   
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