2005, 8(1).
Abstract:This paper studies the mode choice problem in a transportation system that comprises a subway parallel to a bottleneck-constrained highway between a residential area and a work place. People can get their destination by either auto or transit mode only; besides these two modes, they can adopt the third one, i. e., firstly drive their cars to the bottleneck, park there and then take the subway to destination.
2005, 8(1).
Abstract:The hybrid index hierarchy fuzzy decision-making method is proposed on the basis of the idea of hierarchy analysis, the fuzzy pattern recognition technique and the fuzzy consistent matrix. The main characteristics of this method stress on the methodology of fuzzy evaluation for hybrid index systems, in which the qualitative and quantitative indexes are synthetically considered. After getting the expression evaluations for each index, using the fuzzy pattern recognition technique, a global evaluation for all...
2005, 8(1).
Abstract:Optimal location model in emergency systems often regards location problem of an given deadline.Deadline and cost of emergency system facilities are both important.Considering these characteristics, A model based on all feasible deadlines is given.Regarding a sequence closely related linear_programming problems to be sloved, an algorithm based on a branch and bound method is given. In this manner, we can use the optimal solution of FLPS′(k)as a starting point in the reoptimization to obtain that of FLPS′...
2005, 8(1).
Abstract:This paper studies the firm's merging strategy and its influence on social welfare in the market with possibility of successive entry. The conclusions in this paper reveal the basic difference of merging behavior between monopolistic competition and oligopoly. The research shows that: 1) permission of successive entry reduces the incentive of firms to merge and avoid the possibility of high market concentration caused by sequential merging, so as to increase the social welfare; 2) though with permission, ac...
2005, 8(1).
Abstract:The practice of investment often relates to the principal_agent theory. Focusing on this theory. we discuss quantitatively on the method of equity incentive, and set up a model to deal with this problem. The conclusions we obtained is helpful to design and improve the existing cash incentive method. Finally, we test this conclusion
2005, 8(1).
Abstract:This paper studies the impact of investment cost asymmetry and required time to implement technology innovation successfully on the technology innovation strategic investment decisions of firms under imperfect competition. The conditions for the preemptive/sequential/simultaneous investment equilibrium are derived. It is shown that required time to implement technology innovation successfully and investment cost asymmetry are the main reasons that affect the three types of equilibria. Furthermore, the impac...
2005, 8(1).
Abstract:On the basis of principal_agent theory, strategy of quality control in supply chain under double moral hazard condition is discussed. When the supplier's costs which are invested in products' quality prevention and seller's costs which are invested in products' quality appraisal both are unobservable information,the supplier and seller may incur moral hazard after contracting. In order to reduce the double moral hazard, the incentive measurements are given: one is the penalty to supplier when supplier provi...
2005, 8(1).
Abstract:In this paper, theories on organizational learning and research findings on the relationship between organizational learning and performance are reviewed, and then the 6P_1B model of organizational learning previously proposed qualitatively is empirically tested based on questionnaire survey in 201 Chinese companies. Data analysis shows a significant and positive correlation between seven organizational learning capabilities and organizational performance, a significant and positive correlation between vari...
2005, 8(1).
Abstract:This paper distinguishes two categories of investors in security markets by the differences of decision basis. A system dynamics model is established to describe the basic structure and information feedback mechanism. We simulate and analyz how the difference of the proportion of two types of investors, private information, public information, psychological characteristics and liquidity need of investors affect the volatility of price and trading volume
2005, 8(1).
Abstract:The paper discusses the significations of linear and nonlinear cointegration, and indicates that nonlinear cointegration theory can detect the equilibrium between time series more effectively in the nonlinear system. We use wavelet neural network to construct the nonlinear cointegration function, and give the DFP algorithm for network training. In the end, we give out the analysis of Shanghai and Shenzhen stock markets, and the results show the validity of wavelet neural network in nonlinear cointegra...
2005, 8(1).
Abstract:Coordination between supplier and buyer is the key of supply chain management. This paper reviews research literatures on supply chain coordination and performance measurement, analyzes the relationships among different factors of supply chain coordination performance, advances theoretical hypothesis and path analysis model reflecting relationships among performance factors. Questionnaires sampling in mainland China are used to validate and analyze the hypothesis model. Some important viewpoints on supply ...