Abstract:In this paper, we present an analysis the effective strategic set of firm's decisions on multiple projects and dynamic investment. We point out that the strength of the influence of the degree of the firm's manager's moral hazard and the proportion of the manager's holding shares on the debt-equity ratio relates to the degree of the manager's risk-aversion. The main conclusions of this paper are as follows: (I) If the investment amount is endogenous, then the change of the firm's debt-equity ratio is posi...

Abstract:We present ASMEC_C, an agent-based model of economy, to analyze macroeconomic policies. The economy is simplified, which consists of many families, many firms, a bank and a government; the states and the behaviors among the individual agents are heterogeneous; the individual agents interact in the markets; the individual agents can always adjust their behaviors in order to adapt the environment; macroeconomic dynamics emerges from the interactions among the individual agents. ASMEC_C is a artificial world ...

Abstract:The paper studies a multi_period portfolio optimization problem with uncertain exit time. With the assumption that the exit time is a random variable obeying some distribution this problem of uncertain exit time is translated into a determinate horizon one. Then the classical methods can be used to solve this model. By applying the dynamic programming principle we obtain the optimal investment strategy and the analytical expression of efficient frontier. Through an example we also prove that this paper is ...

Abstract:This paper tells the basic concept of custom forfeit crisis and analyses the procreant reason resulting from the custom forfeit. It points out the existent problems of the traditional analysis models in evaluating custom forfeit risks. The paper puts forward a research method of custom forfeit crisis based on decision tree. An Algorithm ID3 is described at length, the concept of right entropy is put forward, and the Algorithm ID3 is improved. An analysis experiment of custom forfeit risks on decisi...

Abstract:In allusion to the traditional assumption by decision makers that the change of marketing value is linear, the article establishes Logistic market value model based on its variant law with nonlinear theory, and with the model, gives out further reasonably market-leading strategic model and technology-leading strategic model within enterprises after the analysis of the traditional assumption, proofs out and dwells on these strategies' perspectives with some theories and practices as well. On the basis...

Abstract:The existing DEA model used to evaluate the relative efficiency of system with independent subsystems assumes that there exists no returns to scale, and one can't obtain pure technique efficiency by using this model. In this paper, C~2GS~2-ISS model that allows decision-making units to exhibit variable returns to scale is introduced. This model can be used to evaluate the pure technique efficiency of decision-making units. Efficiency of every decision-making unit is divided into pure technique efficien...

Abstract:This article examines the behavior of equity volume and volatility for the individual firms composing the Shanghai 30 index and Shenzhen composite index in long run. Using multivariate frequency domain two- step semiparametric procedures, by tapering the data instead of detrending them, the long memory parameters of nonstationary vector process have been consistent estimated. We find that there is strong long memory in both series, besides, for most of the stocks, the volatility and volume exhibit the same ...

Abstract:This paper attempted to apply the optimal control theory to dynamic optimal solutions of organizational learning in manufacturing firms. We built an optimal control model for organizational learning, taking investing rates for conceptual learning and operative learning as decision variables, cumulative knowledge level, productivity, production cost per unit, and defective product ratio as state variables, and total profit in the planning horizon as index function. The distinct feature of the presented mo...

Abstract:The joint decisions of production assignment, lot sizing, transportation and order quantity for single product in a production_distribution network system with multiple suppliers and multiple destinations are discussed in this paper. The joint decision addressed in this paper is in effect a two layer decision procedure, of which the upper layer is the joint decision in production assignment and lot sizing(APLS), and the lower layer is a joint transportation and order quantity(TOQ) problem. Subsequently, a t...

Abstract:Through application of network organization theory, relationships between types of network organizations and their management mechanisms are studied. Based on the knowledge transaction density occurred between enterprises groups and their subsidiaries, nodes of enterprises network can be classified into self_sufficient, production_based, and operation_centered subsidiaries. By means of literature review, we conclude three types of mechanisms that group headquarters use to control their foreign subsidiaries....

Abstract:Supply chain contracts are the fundamental ways in realizing supply chain coordination and profit partition. In this paper, the demands from downstream enterprises are divided into two kinds, which are described as deterministic demands (described by means of deterministic function with given structures) and uncertain demands (described by means of random function). The demand_driven contract problems are then defined in the scenario of supply chain management. Afterwards, the theories and methodologies of ...

Abstract:According to QSIM theory, a qualitative simulation method for forecasting and describing group work behavior transition process is set up. Firstly, the qualitative description method for group work behavior and effect relationship between each other is designed. The concepts of decision variable and state variable are given. Secondly, the rule of state variables' transition is defined, based on which all of the possible I transition and P transition are listed, and some transitions are explained by graph.