Table of Content

28 September 2000, Volume 8 Issue 3 Previous Issue    Next Issue

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Supply Chain Management in E-commerce Era LAN Bo-xiong, ZHENG Xiao-na, XU Xin 2000, (3):  2-8.  Abstract ( 4937 )   PDF (936KB) ( 9052 )   Save E-commerce has been making great influences over global economy. This paper disusses the significant changes of market environment of enterpirses, the core tasks of supply chain management in E-commerce era and the theories and methodologies of managing supply chain in such situation. References | Related Articles | Metrics

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The Agricultural Product Cost Investigation and Price Monitor Information Management system Designing LU Jue-min, ZHANG Yue-jin 2000, (3):  9-13.  Abstract ( 2105 )   PDF (581KB) ( 1586 )   Save In this paper the agricultural product cost investigation and price monitor information management system is introced. The structure, design consideration and function of the system are explained. The technique difficult points and solution method are mainly discussed. References | Related Articles | Metrics

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The Bi-level Programming Model and Algorithm based on Sensitivity Analysis for Estimating Origin-Destination Demands on Mixed Urban Traffic Networks An Mei, Gao Zi-you, Yang Lu 2000, (3):  14-20.  Abstract ( 2088 )   PDF (2202KB) ( 1997 )   Save A bi-level programming model for origin-destination demands estimation is established on mixed urban traffic congested network based on three traffic modes (car, bus, bicycle). Moreover, a heuristic algorithm for solving this model is also proposed based on sensitivity analysis method. Finally a numeral test is used to illustrate the applications of the bi level programming model for estimating origin destination demands. In the numeral results, estimation values of origin destination demands and the link traffic flows can be obtained simultaneously from the model and algorithms. References | Related Articles | Metrics

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A Geometric Approach to Solving Optimal Weights of Portfolio TU Xin-shu, WANG Jian 2000, (3):  21-26.  Abstract ( 2280 )   PDF (2263KB) ( 1886 )   Save In this paper, by setting up a critical line equation of portfolio investment without or within non-negative restriction, we advance a method to find out the optimal weight of portfolio investment, whether yield or risk is given. References | Related Articles | Metrics

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VaR Methodology and Its Application in Stock Market Risk Analysis FAN Ying 2000, (3):  27-33.  Abstract ( 2610 )   PDF (1395KB) ( 4896 )   Save This paper discusses the concept and calculation method of VaR for measuring investment risk. Based on the random walk hypothesis of stock price, the VaRs of stock in Shenzhen market under different confidence level are investigated, and the comparisons with actual investment return are also presented. The application of VaR to stock investment in China is illustrated with an example. References | Related Articles | Metrics

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The Incentive and Monitor in Principle-Agent Problem WANG Xian-yu, YAN Jin-jiang 2000, (3):  34-39.  Abstract ( 2283 )   PDF (2284KB) ( 2255 )   Save In the principle-agent problem with moral hazard, the observation of the state of nature has the same effect with the monitoring of agent’s action. Considering the cost of observation, this paper puts forward the state-observation model and analyzes the informational asymmetry with Baysian theorem. Then we discuss the impacts of different observation level on agent’s effort, risky cost and agency cost, etc. At the end of this paper, we present the condition that principle would like to observe the state of nature. References | Related Articles | Metrics

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Research of the Resource leveling in Network Program LIN Zhi-rong, ZHU Hong-dao 2000, (3):  40-44.  Abstract ( 1986 )   PDF (909KB) ( 1526 )   Save The mathematical model of resource leveling for network program based on aggregate function is presented,and the correspondent genetic algorithms are discussed One new repair operator that constrains the logical precedence relations of the activities from the peak section of resource occupying is designed. References | Related Articles | Metrics

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Controllable Analysis of Expected Price for Disequilibrium Market LEI Yong, GONG De-en 2000, (3):  45-48.  Abstract ( 2192 )   PDF (781KB) ( 1829 )   Save From the viewpoint of economic control theory,dynamic analysis method is used to study the stability of disequilibrium market containing expected price and the controllability of expected priceThe results are accordant with economic reality. References | Related Articles | Metrics

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Service Recovery Stratage-How Firms Correct Service Failure and Learn from it LI You-cheng, BAI Cheng-run, LI Qi-rong 2000, (3):  49-53.  Abstract ( 2135 )   PDF (739KB) ( 1631 )   Save To maintain long term competitive advantage, firms should not only serve customers and win their favours, but also do their best to retain them Service recovery stratage(SRS) is important for firms to retain customers SRS can correct firms’ service failure and make customer feel more satisfactory and more loyal to them Through implementation of SRS and systematic learning, firms can improve their service quality and finally increase their profits. References | Related Articles | Metrics

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The Influence on the Economic Growth by the Adjustment of Industrial Structure CUI Yu-quan, WANG Lu-zhi, SUN Jian-an 2000, (3):  54-57,48.  Abstract ( 2142 )   PDF (2142KB) ( 2654 )   Save This paper uses the grey concern theory to analyse the influence on the economic growth by the adjustment of industrial structure It also analyses the influence on the economic growth by the adjustment of industrial structure from the adjustment of industrial structure itself Using the data of Shandong statistical yearbook,we can know that the adjustment of industrial structure takes important effect to the economic growthThe reasonable industrial structure is the basic of economic growth. References | Related Articles | Metrics

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Neural Network Based Predicative Method for Flood Disaster WEI Yi-ming, FAN Ying, FU Ji-liang, XU Wei-xuan 2000, (3):  58-63.  Abstract ( 2031 )   PDF (1158KB) ( 2288 )   Save There are two types of predicative problems about the practical predication in the engineering application,one is called the well-structured problem,another is called ill-structured problem But most of problems on the flood disaster predication belong to the ill-structured problem Artificial Neural Network(ANN) is a powerful effective tool to deal with this kinds of ill-structured problems ANN has several characteristics that indicate its suitability for the flood disaster predication problem In this paper,the Neural Network model for flood disaster predication is formulated Its principle is described,and then illustrated with an example. References | Related Articles | Metrics

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Key Factors for Information Technology Management SHI Yun, CHEN Guo-qing, Jiang Zhen-hui 2000, (3):  64-70.  Abstract ( 2100 )   PDF (1101KB) ( 1523 )   Save This paper discusses the importance of IT management in enterprises that face rapid environment changes From a survey of Chinese enterprises,a key factor study is conducted centering around eleven IT management issues Consequently,five classes of key factors for IT management are identified based upon quantitative methods and empirical analysis. References | Related Articles | Metrics

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Imitations & Inferior Commodities’ Influence on Economy and Punishing Tactics LI Bao-ming 2000, (3):  71-75.  Abstract ( 2101 )   PDF (637KB) ( 2245 )   Save The article argued that information asymmetry is the economical environmental condition for producing imitations & inferior commodities,proposed a mechanism that imitations & inferior commodities drive high-quality commodities out of market,estimated the economical efficiency and social welfare’s loss brought by imitations & inferior commodities,and finally discussed the punishing tactics. References | Related Articles | Metrics

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The Modelling of China’s Foreige Capital Demand and Its Cointegration Analysis MA Chao-qun, CHEN Han-li 2000, (3):  76-81.  Abstract ( 1825 )   PDF (2010KB) ( 1996 )   Save Since the reform and opening,China has gained great progress in utilizing foreign capital which has been playing important role in China’s economic development In the 90’s,with the huge increase of foreign capital,some negative effects resulted from inappropriate foreign capital scale and structure are broadened and seriously influence China’s economic construction It seems extremely important to bring foreign capital into full play through deep research into foreign capital demand. References | Related Articles | Metrics