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A PRICE-SETTING NEWSVENDOR MODEL UNDER CVAR DECISION CRITERION WITH EMERGENCY PROCUREMENT

Journal of Systems Science and Systems Engineering 2010年第1期19卷 85-104页

作者： Minghui XU school of economics and management,Wuhan University,Wuhan 430072,China school of economics and management Wuhan University Wuhan China

In this paper, we consider a newsvendor model in which a risk-averse manager faces a stochastic price-dependent demand in either an additive or a multiplicative form. An emergency purchase option is allowed after the realization of demand to satisfy the units that are short. By adopting Conditional value-at-risk （CVaR） as the decision criterion, we aim to investigate the optimal pricing and ordering decisions, and the effects of parameter changes in such a setting. We provide sufficient conditions for the uniqueness of the optimal policy for both demand models. We perforl~, comparative statics analysis to show how the optimal pricing and ordering decision behaves when changing parameters. We also compare our results with those of the newsvendor with a general utility function and with CVaR criterion under lost sales assumption. Our key results include：（i） For both demand models, the optimal selling price is decreasing in risk aversion. Hence, the optimal price of a risk-averse newsvendor is not greater than the optimal price of a risk-neutral newsvendor. （it） In contrary to the lost sales case, for the multiplicative demand model, the optimal order quantity may not be monotonic in risk aversion. Consequently, the optimal risk-averse order quantity may be lower or higher than the optimal risk- neutral counterpart. （iii） For the additive model, the optimal order quantity is strictly increasing in the emergency purchase price, while for the multiplicative model the optimal order quantity has no such a monotonic property. Some numerical examples are conducted to verify our claims and gain more insights about the risk-averse decision-making behaviors.

关键词： Newsvendor model inventory pricing risk aversion conditional value-at-risk

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ORDERED WEIGHTED DISTANCE MEASURE

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Journal of Systems Science and Systems Engineering 2008年第4期17卷 432-445页

作者： Zeshui XU~1 Jian CHEN~2 1 school of economics and management,Southeast University,Nanjing,Jiangsu 210096,China 2 school of economics and management,Tsinghua University,Beijing,100084,China school of economics and management Southeast University Nanjing Jiangsu China school of economics and management Tsinghua University Beijing China

The aim of this paper is to develop an ordered weighted distance(OWD) measure,which is the generalization of some widely used distance measures,including the normalized Hamming distance, the normalized Euclidean distance,the normalized geometric distance,the max distance,the median distance and the min distance,***,the ordered weighted averaging operator,the generalized ordered weighted aggregation operator,the ordered weighted geometric operator,the averaging operator,the geometric mean operator,the ordered weighted square root operator,the square root operator,the max operator,the median operator and the min operator are also the special cases of the OWD *** methods depending on the input arguments are given to determine the weights associated with the OWD *** prominent characteristic of the OWD measure is that it can relieve(or intensify) the influence of unduly large or unduly small deviations on the aggregation results by assigning them low(or high) *** desirable characteristic makes the OWD measure very suitable to be used in many actual fields,including group decision making,medical diagnosis, data mining,and pattern recognition,***,based on the OWD measure,we develop a group decision making approach,and illustrate it with a numerical example.

关键词： Group decision making ordered weighted distance(OWD) measure aggregation operator

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Adaptive neuro fuzzy inference system for classification of water quality status

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Journal of Environmental Sciences 2010年第12期22卷 1891-1896页

作者： Han Yan,Zhihong Zou,Huiwen Wang school of economics and management,Beihang University,Beijing 100191,China school of economics and management Beihang University Beijing 100191 China

An adaptive neuro fuzzy inference system was used for classifying water quality status of river. It applied several physical and inorganic chemical indicators including dissolved oxygen, chemical oxygen demand, and ammonia-nitrogen. A data set （nine weeks, total 845 observations） was collected from 100 monitoring stations in all major river basins in China and used for training and validating the model. Up to 89.59% of the data could be correctly classified using this model. Such performance was more competitive when compared with artificial neural networks. It is applicable in evaluation and classification of water quality status.

关键词： adaptive neuro fuzzy inference system artificial neural networks water quality status classification

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Local asymptotic behavior of the survival probability of the equilibrium renewal model with heavy tails

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Science China Mathematics 2005年第3期48卷 300-306页

作者： JIANG Tao & CHEN Yiqing school of Finance. Nanjing University of Finance and economics, Nanjing 210003, China school of economics and management, Guangdong University of Technology, Guangzhou 510090, China school of Finance Nanjing University of Finance and Economics Nanjing China school of economics and management Guangdong University of Technology Guangzhou China

Recently, Tang established a local asymptotic relation for the ruin probability in the Cramer-Lundberg risk model. In this short note we extend the corresponding result to the equilibrium renewal risk model.

关键词： geometric sums, heavy-tailed distribution, ladder height, the equilibrium renewal model, the ruin probability.

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Competence Set Analysis Under Risk and Uncertainty

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Journal of Systems Engineering and Electronics 2001年第2期12卷 12-18页

作者： Feng Junwen school of economics and management, Nanjing University of Scienece and Technology, 210094, P. R. China school of economics and management Nanjing University of Scienece and Technology 210094 P. R. China

The competence set analysis technology can be applied to solve the decision making problems successfully and satisfactorily. This paper mainly focuses on the expanding strategy research and development of the competence set under risk and uncertainty. A systematic expression of the competence set analysis is described, several expanding principles and strategies with regard to several different cases are presented, and their applications in the personnel training program are discussed, some conclusions and suggestions to be developed in a further work are included.

关键词： Competence set analysis Competence expansion Decision analysis Habitual domain Risk and uncertainty analysis Expansion principle and strategy.

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A Table Based Algorithm for MinimumDirected Spanning Trees

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Journal of Systems Engineering and Electronics 2001年第1期12卷 22-28页

作者： Feng Junwen school of economics and management, Nanjing University of Science and Technology, 210094, P. R. China school of economics and management Nanjing University of Science and Technology 210094: P. R. China

As far as the weighted digraph is considered, an optimal directed spanning tree algorithm called table based algorithm (TBA) is proposed in the paper based on the table instead of the weighted digraph. The optimality ... 详细信息

关键词： Optimal spanning tree problem Digraph Directed tree Table representation.

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Quantificational analysis on progress of river water quality in China

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Journal of Environmental Sciences 2009年第6期21卷 770-773页

作者： YUN Yi,ZOU Zhihong,FENG Wei,RU Mai school of economics and management,Beihang University,Beijing 100191,China. school of economics and management Beihang University Beijing 100191 China. E-mail: winniecloud81@***

In order to understand the dynamic change of water quality in a specific period of time,a type of possibility transition matrix based on the theory of Markov process was *** transition possibility with a weight to calculate the degree of absolute advancement was given based on the result of water quality *** concept of relative advancement was *** was used to evaluate the extent of water quality changed in a period of *** method was used to calculate the degrees of relative advancement for 4 rivers in China,and the results were analyzed.

关键词： water quality evaluation possibility transition matrix Markov process degree of advancement

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Interface Assets:Uncontrolled Resources of Competitive Advantage

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清华大学学报（哲学社会科学版） 2009年第S1期24卷 81-88页

作者： GUO Guang-rui(school of economics and management,Tsinghua University,Beijing 100084,China)

The purpose of strategic management is to produce knowledge of,to understand and to explain how firms achieve and sustain competitive *** the assumption that something beyond firm-controlled resources and industry structure contribute significantly to firm's competitive advantage as well,I propose a new construct of interface assets to integrate all the resources beyond firm-controlled resources and industry structure.I examine the attributes of interface assets and propose four assumptions about interface assets.I also develop a framework that illustrates how interface assets contribute to competitive ***,I conclude the article by discussing the theoretical and practical implication of the interface assets model.

关键词： interface assets competitive advantageAbout the Author: GUO Guang-rui,school of economics and management,Tsinghua University,Ph.D.Candidate,research direction: strategic management,competitive advantage

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Rural Credit Innovation:Experience of China

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清华大学学报（哲学社会科学版） 2009年第S1期24卷 89-96页

作者： HAO Xiu-qing(school of economics and management,Tsinghua University,Beijing 100084,China)

This paper is based on literature and interviews with the management of a leading agricultural firm which has developed a new credit rural *** uses the case study to generalize a new model of rural credit *** provides the government with an example on how to help solve rural credit problems and poverty *** also provides the banking industry with a new profit-making model,which benefits farmers at the same time as well.

关键词： Rural Credit Innovation Practice Agricultural Industrialization ChinaAbout the Author: HAO Xiu-qing,school of Eonomics and management,Tsinghua University,Ph.D.Candidate,research direction: technology innovation

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Study on the Reliability Evaluation of Qualitative Indices in Multi-Objective Decision

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Journal of Systems Engineering and Electronics 2002年第2期13卷 60-63页

作者： Zhang Mingshan , Tang Xiaowo & He Dequan( school of economics and management, Southwest University for Nationalities, Chengdu 610041, P.R.China school of management, University of Electronics Science and Technology, Chengdu 610054, P.R.China school of school of economics and management Southwest University for Nationalities Chengdu 610041 P. R. China school of management University of Electronics Science and Technology Chengdu 610054 P. R. China school of economics and management Huadong Polytechnic University Shanghai 200237 P. R. China

Qualitative indices in multi-objective decision can usually be evaluated and measured by mathematical methods or models, but the obtained results are sometimes inaccurate because of fuzziness of indices. To improve the accuracy and reliability of the evaluation results, set-value statistic principle is applied, and accordingly four evaluation methods are obtained. Meanwhile, these methods are compared briefly.

关键词： Evaluation Fuzzy sets Mathematical models Reliability

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