But, every member in the supply chain independently operate according to its own need, because they cannot know the client need and matching state.

• 但是因为无法确切知道客户需求与供应的匹配状态，供应链上的每个成员根据各自的需要独立运作，导致建立重复库存，因而无法达到供应链全局的最低成本，整个供应链系统的库存会随着供应链长度的增加而发生需求扭曲。