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排序方式: 共有115条查询结果,搜索用时 10 毫秒
1.
Ola Hammarlid 《Journal of Mathematical Economics》2005,41(8):974-982
When is a sequence of gambles, which is initially rejected eventually accepted? The eventual acceptance is defined as a pair property between the utility function and the sequences of gambles. A sequence of gambles is accepted when the gambles follow a large deviation principle and the utility function is non-satiated and bounded from below in a certain way. The number of gambles required for acceptance is computed. 相似文献
2.
Probability theory in fuzzy sample spaces 总被引:2,自引:0,他引:2
This paper tries to develop a neat and comprehensive probability theory for sample spaces where the events are fuzzy subsets of The investigations are focussed on the discussion how to equip those sample spaces with suitable -algebras and metrics. In the end we can point out a unified concept of random elements in the sample spaces under consideration which is linked with compatible metrics to express random errors. The result is supported by presenting a strong law of large numbers, a central limit theorem and a Glivenko-Cantelli theorem for these kinds of random elements, formulated simultaneously w.r.t. the selected metrics. As a by-product the line of reasoning, which is followed within the paper, enables us to generalize as well as to bring together already known results and concepts from literature.Acknowledgement. The author would like to thank the participants of the 23rd Linz Seminar on Fuzzy Set Theory for the intensive discussion of the paper. Especially he is indebted to Professors Diamond and Höhle whose remarks have helped to get deeper insights into the subject. Additionally, the author is grateful to one anonymous referee for careful reading and valuable proposals which have led to an improvement of the first draft.This paper was presented at the 23rd Linz Seminar on Fuzzy Set Theory, Linz, Austria, February 5–9, 2002. 相似文献
3.
基于三角模糊数比较大小原理的模糊层次分析法在供应商合作伙伴选择中的应用 总被引:1,自引:0,他引:1
提出了一种基于三角模糊数比较原理的供应商评价指标体系和多级评价模型,根据模糊层次分析法建立决策递阶层次结构,再依据三角模糊数比较原理隶构建多级评价模型,通过实证分析说明了该模型在供应商评价方面的有效性. 相似文献
4.
本文首先指出有界灰数对于四则运算不具备封闭性。证明了有界灰数所构成的空间(G(?),D)是可分的,局部紧的完备度量空间。 相似文献
5.
The stochastic approach to index numbers has been successfully applied to the estimation of inflation, the world interest rate and international competitiveness.?One distinct advantage of this approach is that it provides the whole distribution of the index, not simply one value. In this article, we extend the stochastic approach to the estimation of a stock market index. We demonstrate how this approach can be used to identify ‘redundant stocks’ that do not contribute significantly to the overall index.?For index tracking purposes, these stocks can be safely excluded. 相似文献
6.
Juan Carlos Martín Concepción Román Clara Gonzaga 《Journal of Convention & Event Tourism》2017,18(1):1-25
This article aims to evaluate the service quality experienced at academic conferences held at the Universidad Técnica Particular de Loja in Ecuador. Our approach is based on fuzzy logic and ideal solutions to calculate a global attendee satisfaction index for specific market segments: Gender, nationality, and age. Current literature on the service quality experienced by conference attendees is still scarce. Our results show that the analyzed segments experience varying levels of satisfaction, and that the more influential attributes to each of them are also different. Our results can be applied to improve the competitiveness of Loja and that of Universidad Técnica Particular de Loja. 相似文献
7.
Summary. This note studies conditions under which sequences of state variables generated by discrete-time stochastic optimal accumulation
models have law of large numbers and central limit properties. Productivity shocks with unbounded support are considered.
Instead of restrictions on the support of the shock, an “average contraction” property is required on technology.
Received: August 27, 2001; revised version: January 9, 2002
RID="*"
ID="*"The author thanks John Creedy and Rabee Tourky for helpful comments, and the Economic Theory Center, University of Melbourne
for financial support. 相似文献
9.
This article extends the economic theory of index numbers to the aggregation of price risk over commodities in production. Superlative indexes of aggregate price risk are related to Tornqvist and Fisher−type output quantity indexes. An application to major crops in Manitoba illustrates the empirical importance of the analysis. 相似文献
10.
通过对历史资料的梳理发现,新型农村合作医疗的“合作”与传统合作医疗的“合作”具有不同的内涵。传统合作医疗不属于社会保险制度,而新农合不仅在学理上具备了社会保险基本特征,还具备了比较成熟的社会保险要素,即政府主导作用的发挥、社会保险参量的设计、大数法则的运用、权利与义务相结合的原则以及实际上的强制性。明确新农合的社会保险性质,将有利于控制自愿参合带来的“逆向选择”,促进城乡基本医疗保险制度的无缝衔接,加快政府责任边界的明晰化。因此,应将新农合向带有强制性的农村基本医疗保险制度发展,同时把政府定额财政补贴变为按比例补贴。 相似文献