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21.
Voters determine their preferences over alternatives based on cases (or arguments) that are raised in the public debate. Each voter is characterized by a matrix, measuring how much support each case lends to each alternative, and her ranking is additive in cases. We show that the majority vote in such a society can be any function from sets of cases to binary relations over alternatives. A similar result holds for voting with quota in the case of two alternatives.We wish to thank Enriqueta Aragones, Jean-Francois Laslier, Andrew Postlewaite, and David Schmeidler for the comments and discussions. We thank Lada Burde for her help in proofreading. 相似文献
22.
A method for evaluating the robustness of medium term multisite distributed schedule is presented. The method of robustness evaluation is based on steps and tools associated with the conceptual model of a MultiSite Reactive Production Activity Control (MSR-PAC). The MSR-PAC makes it possible to study the sensitivity of the scheduled plans in presence of perturbations. These must be evaluated before being dispatched to the shop-floors. At present, to the best of the authors' knowledge, there is no means to make this evaluation in the distributed systems such as extended enterprise. The monitoring of errors is based on the discrepancy between the two flow-shape functions that model respectively the dynamics of the scheduled manufacturing orders and the state of the perturbed production. The MSR-PAC is based on a multisite agent system and on the monitoring of the perturbed virtual jobshops. The method can also be used for controlling short term distributed production activities. 相似文献
23.
Nicolas Gravel 《Social Choice and Welfare》1998,15(3):371-382
This paper examines a possibility of enlarging the domain of definition of individual preferences suggested by the recent
literature on freedom of choice. More specifically, the possibility for an individual to have preferences that depend upon both the opportunity set that
she faces and the particular alternative that she chooses from that set is considered. Even more specifically, the possibility
for these preferences to value freedom of choice, as defined by the set theoretic relation of inclusion, while being consistent,
in a certain sense, with the existence of a preference ordering over the options contained in opportunity sets is investigated.
It is shown in the paper that a necessary condition for the existence of any transitive extended preferences of this type is for freedom of choice to be given no intrinsic importance.
Received: 22 November 1995 / Accepted: 11 January 1997 相似文献
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Recent criticisms have led some to dismiss time-series analyses in the debate over the minimum wage. We investigate previous
time-series studies showing that raising the minimum wage has a smaller impact on females than males. We reanalyze the data
in light of recent developments in time-series methods and find that the minimum wage has a similar significant negative impact
on both males and females. We conclude that, following a 10 percent increase in the minimum wage, both male and female employment
drops from between 2 and 4 percent over a two-year period. This employment decrease slowly erodes as economic growth and inflation
cause the minimum wage to fall below the market-clearing wage.
We thank David Card and Alan Krueger for generously providing the data. 相似文献
26.
Régis Pouillot Nicolas Miconnet Anne-Laure Afchain Marie Laure Delignette-Muller Annie Beaufort Laurent Rosso Jean-Baptiste Denis Marie Cornu 《Risk analysis》2007,27(3):683-700
A quantitative assessment of the exposure to Listeria monocytogenes from cold-smoked salmon (CSS) consumption in France is developed. The general framework is a second-order (or two-dimensional) Monte Carlo simulation, which characterizes the uncertainty and variability of the exposure estimate. The model takes into account the competitive bacterial growth between L. monocytogenes and the background competitive flora from the end of the production line to the consumer phase. An original algorithm is proposed to integrate this growth in conditions of varying temperature. As part of a more general project led by the French Food Safety Agency (Afssa), specific data were acquired and modeled for this quantitative exposure assessment model, particularly time-temperature profiles, prevalence data, and contamination-level data. The sensitivity analysis points out the main influence of the mean temperature in household refrigerators and the prevalence of contaminated CSS on the exposure level. The outputs of this model can be used as inputs for further risk assessment. 相似文献
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Nicolas Loewe Mehdi Bagherzadeh Luis Araya-Castillo Claudio Thieme Joan Manuel Batista-Foguet 《Social indicators research》2014,118(1):71-86
This article examines the subjective antecedents of life satisfaction of workers. Adopting a ‘bottom-up’ perspective, we assessed the unique influence that satisfaction with multiple life domains have on evaluative judgments of overall life satisfaction. Based on a nationwide sample of 530 Chilean workers, we simultaneously tested the effects of seven life domain satisfactions that have been consistently included in extant models of life satisfaction and subjective well-being. These were satisfaction with health, financial situation, social relationships, one’s self-worth, leisure-time, family, and work. Having controlled for age and gender, results showed that satisfaction with one’s financial situation was the dominant predictor of overall life satisfaction of workers, with a weight of .36. Satisfaction with family, work, and health had effects of .25, .14, and .14, respectively. Interestingly, satisfaction with one’s self-worth, leisure-time, and social relationships did not have statistically significant effects on life satisfaction, although the first two showed t values near the critical value. 相似文献
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