随机型库存决策的一种改进方法

对传统库存管理中的随机决策模型进行了改进，建立了缺货损失是非线性的期望准则模型，进而得到了不依赖于方差且能反映库存风险的单一目标的库存决策模型。该模型反映了缺货损失与作货损失的不对称特征，它与传统模型相比，省略了方差的计算，避开了传统模型中双目标综合上的困难。利用该模型解释了我国现有企业库存量偏大的现实问题，指出模型在供应链管理中的重要意义。

An Improved Method on Stochastic Stock Decision Model

The stochastic decision model in the traditional stock managementis improved, and an expectation criterion model that the loss of being out of stock is nonlinear is formed. Furthermore a stock decision model on unitary objective that not only doesn’t depend on variance but also could reflect the risk of stock is obtained. This model reflects the asymmetric characteristic between the loss of being out of stock and the loss of surplus stock. As compared with the traditional model, this model leaves out compute on variance and avoids the difficulty on unifying the dual objective of traditional model. This model is used to explain the real problem of high stock size in Chinese enterprises nowadays. It points out that this model is of important significance in the supply chains management.