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主管:中国科学院
主办:中国优选法统筹法与经济数学研究会
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Table of Content

    28 October 2002, Volume 10 Issue 5 Previous Issue    Next Issue
    Bidder’s Strategy under a Kind of Online Auction-Group Buying
    CHEN Jian, CHEN Xi-long, SONG Xi-ping
    2002, (5):  1-7. 
    Abstract ( 2682 )   PDF (2128KB) ( 1816 )   Save
    Group buying is a new kind of dynamic pricing mechanisms on the Internet The mechanism makes the bidders as a group through Internet to get the volume discounts:the more bidders bid,the lower the auctioned object’s price becomes We analyze the strategy of bidders with IPV(Independent Private Value)model and build an incomplete information dynamic game model to illustrate the bidders’bidding process It is found that there exists a weakly dominant strategy If only discrete bid permitted,the strategy that a bidder bids the permitted price just no greater than his value is always weakly dominant,which means that the group buying auction is a kind of weakly incentive compatible mechanism.
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    A Model of Loan’s Portfolio Optimization Based on the Fuzzy Synthetic Evaluation of the Earnings
    XI Yang, CHI Guo-tai, LIN Jian-hua
    2002, (5):  8-13. 
    Abstract ( 2120 )   PDF (2306KB) ( 1441 )   Save
    Loan’s portfolio optimization is important to decision makings in the credit management Analyzing the characters and defects of the existed models of loan’s portfolio optimization,this paper is subject to such constraints of fuzzy synthetic evaluation while aims at minimizing portfolio risks,then establishes a fuzzy optimization model of loan’s portfolio On the condition that the fuzzy synthetic evaluation aim and evaluation matrix of the loan earnings rate are known,we can get the loan’s proportion by means of quadratic programming,thus solve the decision making problem of loan’s portfolio With the farther practical analysis,it illuminates the model is reasonable and feasible.
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    The Research of Financial Analysis System for TNC’s Foreign Direct Investment Project
    GAO Xiao-hui, YANG Da-kai
    2002, (5):  14-19. 
    Abstract ( 2286 )   PDF (1193KB) ( 2798 )   Save
    According to some investigations,many TNC have their own methods in assessing FDI projects.But,in general,these methods are incomplete and sometimes have conflicts in different steps.So,on the base of particular principle,this dissertation tries to establish a financial analysis system of foreign direct investment(FASFDI)with consistency and operability.And,it will be my honor if the dissertation can provide any conference to Chinese enterprises developing their FDI.
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    The Partial Least-Squares Regression Analysis of Impact factors of Foreign Direct Investment in China
    XU He-lian, LAI Ming-yong, Qian Xiao-ying
    2002, (5):  20-25. 
    Abstract ( 2139 )   PDF (1478KB) ( 2482 )   Save
    Foreign direct investment(FDI)is increased year by year since the reform and opening of China,and it played an important role on China’s economy performance There are many factors which impact FDI in China,and there is multi collinearity or nearly multi collinearity among the factors This paper adopts a new analysis method of multivariate data-the Partial Least squares(PLS)Regression, to analyze the impact factors of FDI in China,and analyze the degree of the factors,the conclusion can offer beneficial advice to introduce FDI into China.
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    Selecting the Optimal Portfolio by Value at Risk’s Preference
    WEN Feng-hua, MA Chao-qun, CHAO Jian-xiong
    2002, (5):  26-29. 
    Abstract ( 2116 )   PDF (1034KB) ( 2534 )   Save
    In conventional finance theory,we use utility function made up of return and variance to instruct investors to find the optimal portfolio,which,in theory,has many flaws According to the description of risk preference in behavioral finance theory,in this paper we quantify the risk preference by Value at Risk and study such a preference′s influence on finding the optimal portfolio.
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    Developing Practice of Credit Risk Management System
    JING Run-tian, ZUO Qi
    2002, (5):  30-34. 
    Abstract ( 1944 )   PDF (486KB) ( 1813 )   Save
    Credit risk management is always regarded as the focus in finance circle,and it is especially important to commercial bank of our country under this emerging market and transforming economic environments.In this paper,it is analyzed that how to manage credit risk with computer supporting,and some specific thought and project are raised up.
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    Study on the Forecast Model in Market Forecasting Support System
    CHENG Fa-xin, LI Huai-zu
    2002, (5):  35-38. 
    Abstract ( 2013 )   PDF (1519KB) ( 1625 )   Save
    In this paper,the process of constructing forecast model is analyzed by appying some theories of fuzzy and statistics,and by using correlative factors predicted are ascertained by Forecasting Support System(FSS) Then,the forecasting model to predicted variables is deduced,and we apply the model to the practising work of forecasting product sales.
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    Research on Multi-sector Economy Balanced Growth
    XU Da-ju, LIU Jia-zhuang, CHEN Xiao-lan
    2002, (5):  39-41. 
    Abstract ( 2135 )   PDF (1286KB) ( 1784 )   Save
    In this paper,two kinds of dynamic input output models which consist of the consumption are put forward,the relations and characters among production,input and consumption in macro economics system are discussed.Their characters with the passage of time are also discussed.
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    An Input-Output Dynamic Model
    FAN De-cheng, LIU Xi-song
    2002, (5):  42-45. 
    Abstract ( 2127 )   PDF (1103KB) ( 2283 )   Save
    Founding an rational and practical input output dynamic model is an important question all along in input output theory study This paper combines Leontief input output static model with income decision theory in macroeconomics, obtains an input output dynamic model based on variable structure control.
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    A Study on Product-Set Pricing
    TANG Xiao-wo, NI De-bing
    2002, (5):  46-50. 
    Abstract ( 2155 )   PDF (1015KB) ( 1853 )   Save
    Based on the concept of product set pricing,this paper interprets the idea of product set pricing,gives the condition under which the total revenue of pure product set pricing is more than single product pricing,and provides the interval in which the optimal k# exists.
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    Study on the Optimization of Physical Distribution Routing Problem by Using Hybrid Genetic Algorithm
    LANG Mao-xiang, HU Si-ji
    2002, (5):  51-56. 
    Abstract ( 4453 )   PDF (1349KB) ( 7183 )   Save
    This paper establishes the optimizing model on physical distribution routing problem.On the basis of analyzing the weakness of genetic algorithm in local search,this paper builds a hybrid genetic algorithm which is the combination of genetic algorithm and local search algorithm for solving physical distribution routing problem,and makes some experimental computations.The computational results demonstrate that the hybrid genetic algorithm can overcome the weakness of genetic algorithm and local search algorithm,so the high quality solutions to the physical distribution routing problem can be obtained.
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    A Randomized Mathematic Model of Logistic System and Allocation of Its Distribution Center
    YANG Bo, LIANG Liang, TANG Qi-he
    2002, (5):  57-61. 
    Abstract ( 2249 )   PDF (1677KB) ( 1810 )   Save
    In some classical models of logistic system the demand of each city is assumed to be constant In this paper we propose a randomized model of logistic system,in which the demand of each city is regarded as a random variable A quantitative approach to determine the distribution center is derived In doing this,some details of mathematics are involved.
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    An Improved Capacity Requirements Planning Method for MRPⅡ/ERP Systems
    ZHUANG Ya-ming, HE Jian-min
    2002, (5):  62-68. 
    Abstract ( 2223 )   PDF (1394KB) ( 2035 )   Save
    To provide customers with products on time,the Manufacturing Resource Planning(MRPⅡ)systems or Enterprise Resource Planning(ERP)systems are introduced to many manufacturers The Capacity Requirements Planning(CRP)is a basic function of MRPⅡ/ERP systems.But the CRP has some weaknesses.For example,it has no capability to adjust the processes and the work centers when they are out of work or the loads on them are out beyond their capacities,and it is on the hypothesis of infinite capacities when calculating the loads of work centers.The author of this paper presents the concept of adaptable processes set and work centers set for a single step in a material process plan after analyzing the mechanism and algorithm of CRP.A new idea including conditions such as the finite capacities of work centers,the workers and the devices for CRP is puts forward by the author.The author also presents an improved algorithm of CRP that reduces the quantity of calculation.
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    The Integration between ERP and CRM under the Circumstance of Internet
    WU Liang-Gang, LIU Hong-Lin, ZHAO Yan-Xi
    2002, (5):  69-73. 
    Abstract ( 2118 )   PDF (521KB) ( 1932 )   Save
    Aiming at the course and actuality of most enterprises’ information building,we expounded the necesity of the integration between ERP and CRM under the circumstance of Internet,and the discussable resolving method,at last give an example in terms of our developing experience.
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    Model and Case Study of Workshop Activity Optimization Based on Cost
    ZHANG Ren-qian, WEI Fa-jie, TAN Zhen
    2002, (5):  74-77. 
    Abstract ( 1932 )   PDF (935KB) ( 1617 )   Save
    The paper introduces the problem of workshop activity optimization and discusses relationship between activity and cost Then,the model of activity based costing is founded Model of workshop activity optimization based on cost is produced by a way of combining activity based costing and theory of activity optimization,and a case study is practised using this model At last,the paper analyzes the real effect of the model of workshop activity optimization under activity based costing.
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    Economic Analysis of Optimum Exhausted On Mineral Resources
    WEI Xiao-ping, WANG Xin-yu
    2002, (5):  78-81. 
    Abstract ( 1899 )   PDF (846KB) ( 1951 )   Save
    The mineral resources are limited,scarce,exhausted and not regenerated resources in the natural world and they are not to be sustainable utilization on theory Being exploited and utilized of them will undoubtedlylead to the result that the ultimate their reserves are zero Then,how to define sustainable utilization of mineral resources has caused the concern of theory circle According to the best condition of exploiting and deposit this paper has gone on the quantitative analysis to exhaustive course of mineral resources It lays a theoretical foundation for further study on fair allocation of mineral resources between generations,and it has also important practical significance for the protection and utilization of mineral resources.
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    The Operation of Venture Capital under Information Asymmetry
    YU Xiao-dong
    2002, (5):  82-86. 
    Abstract ( 2028 )   PDF (826KB) ( 1539 )   Save
    Information asymmetry is the key reason for the existence and development of venture capital of high-tech enterprises The paper unifies moral hazard and adverse selection,which arise from information asymmetry, in one model,and analyses systematically the core capability and competition advantage of venture capital as it copes with these problems In addition,this paper discusses the influence of information asymmetry on the exiting approach of venture capital.
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    The Nature and Function of the Lowest Price in Bid and Its Distortion and Regulation
    WU Fu-liang, ZHONG Wei-zhou
    2002, (5):  87-94. 
    Abstract ( 2448 )   PDF (1195KB) ( 2181 )   Save
    The lowest price in bid is a kind of very popular international method in bid in construction project management The method which makes the bidder of the lowest price in bid only a successor can improve economic efficiency of resources allocation By now,this method is being adapted to social practice of project construction in China Its nature,function and distortion in project construction practice are analyzed theoretically Its distortion originals and regulation suggestions are put forward in the paper.
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    A Combinational Evaluation Method Resulting in Consistency between Subjective and Objective Evaluation in the Least Squares Sense
    MAO Ding-xiang
    2002, (5):  95-97. 
    Abstract ( 2290 )   PDF (752KB) ( 3040 )   Save
    In this paper,we analyze first the basic principles of subjective and objective weighting methods.Then,we put forward a combinational evaluation method resulting in consistency between subjective and objective evaluation in the least squares sense and use an example to show the reason of the method.
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    The Method of Ascertaining Attribute Weight Based on Rough Sets Theory
    CAO Xiu-ying, LIANG Jing-guo
    2002, (5):  98-100. 
    Abstract ( 2049 )   PDF (769KB) ( 2913 )   Save
    Attribute weight is usually ascertained by decision maker’s experience knowledge According to calculation method of attribute importance degree in rough sets,the paper put forward the method of ascertaining attribute weight which combined weight given by decision maker with attribute importance degree ascertained by rough sets,that is the method of ascertaining attribute weight based on rough sets The method realized unity between subjective experience knowledge and objective situation,thus it can acquire much more ideal result.
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