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Bouda Vosough Ahmadi Annet Velthuis Henk Hogeveen Ruud Huirne 《Food Economics - Acta Agriculturae Scandinavica, Section C》2006,3(3):161-173
The cost-effectiveness of seven decontamination measures to reduce Escherichia coli O157:H7 (VTEC)-contaminated carcass quarters in a typical Dutch dairy-beef industrial slaughterhouse were explored. To estimate the effectiveness a stochastic epidemiological-simulation model was used and to estimate the net cost a deterministic-economic model. The estimated baseline prevalence of daily-contaminated quarters was 9.16% (with a 90% confidence interval 4.40-13.10%). A reduction in the prevalence of VTEC-contaminated quarters to 2% using decontamination measures is achieved at costs of €0.20 to €0.50 per quarter, which is 16-40% of the net profit per carcass. A reduction to a prevalence of 1% will cost €0.50-€1.00 per quarter. Additional carcass trim and carcass steam-pasteurization are considered as the most cost-effective decontamination measures with costs of €16,340 and €20,243 per year to achieve a 1% prevalence reduction. Nevertheless, the lowest level of VTEC prevalence, less than 1%, is achieved using a set of measures that costs between €1.00 and €2.00 per quarter or, by implementing irradiation, which costs €4.65 per quarter. 相似文献
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介绍挪威工业界使用OEE作为考核设备效率的关键性能指标,以及实际使用OEE指标的4个层次生产损失的模式和15个生产损失要素。 相似文献
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The performance of firms depends not just on the structure of the industries in which they compete but also on their relative positioning within those industries, in terms of operating within particular niches. We propose that demand for these niches depends endogenously on the historical ecology of the products offered: Niches become saturated—reduced in their ability to support products—as a large number of previous offerings allows the audience to satisfy its desire for products of a particular type. Analyzing the survival rates of television series aired in the United States from 1946 to 2003, we found that the survival rates of future entrants fell with the extensiveness of recent offerings in the niche, and that the negative association between crowding and survival also weakened with this saturation. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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Tommy Staahl Gabrielsen Bjørn Olav Johansen Odd Rune Straume 《Journal of Economics & Management Strategy》2023,32(1):48-74
We study the incentives of national retail chains to adopt national (uniform) prices across local markets that differ in size and competition intensity. In addition to price, the chains may also compete along a quality dimension, and quality is always set locally. We show that absent quality competition, the chains will never use national pricing. However, if quality competition is sufficiently strong there exist equilibria where at least one of the chains adopts national pricing. We also identify cases in which national pricing benefits (harms) all consumers, even in markets where such a pricing strategy leads to higher (lower) prices. 相似文献
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We set up a merger game between retailing stores to study the incentives of independent stores to form a big store when some consumers have preferences for one‐stop shopping. Such one‐stop shopping creates complementarity between products, leading in turn to lower prices after a big store is formed but may also lead to an improvement in the bargaining position vis‐à‐vis producers through the creation of an inside option that small stores do not have. We find that big stores will not be formed when the stores' ex ante bargaining power vis‐à‐vis producers is high. Otherwise, an asymmetric situation occurs with only one big store created when one‐stop shoppers are abundant. 相似文献
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Olav Velthuis 《American journal of economics and sociology》2000,59(1):71-74
This comment is in response to Frederic L. Pryor (2000). "The Millennium Survey: How Economists View the U.S. Economy in the 21st Century." The American Journal of Economics and Sociology. 59 (January), pp. 3-33. 相似文献
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