This paper discusses the effects followed by non-uniqe optimum baae in LP, and studies in stress the cause and consequence of the non-uniqe shadow price, as well as its property, determination and application.

• 指出线性规划在最优基不唯一时出现的各种现象,重点讨论引起影子价格不唯一的原因及其后果,影子价格不唯一的性质、判定及应用。