影子价格函数及其经济意义  

Shadow Price Function with Its Economic Meaning

作　　者：周永华[1] 陈新[1] 刘建斌[1] 郑芳英[1] 

机构地区：[1]浙江理工大学理学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2006年第3期346-350,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

摘　　要：文章揭示了作为某一资源的影子价格函数是阶梯下降函数,具有经济意义的影子价格不完全等同于对偶问题的解。其间断点对应着(LP)问题的退化情况,提出了买入影子价格和卖出影子价格,解释了影子价格不唯一时的经济意义,并就资源数量对影子价格的影响进行了几何解释。The article reveals that the shadow price function of a certain resource is a ladder decreased function. The shadow price with economic meaning is not absolutely equal to the solution of dual linear programming. The intermittent points introduce the bought-shadow price and the sold-shadow price, corresponding to the degraded instance of the linear programming. And it explains the economic meaning as it is not unique with the geometric explanation of the effects of the quantity of resources to the shadow price.

关 键 词：影子价格函数 间断点 线性规划 退化 

分 类 号：O221[理学—运筹学与控制论] F224[理学—数学]