成本粘性研究:来自中国上市公司的经验证据

Study on Cost Stickiness

成本粘性是指当成本随着业务量的变动而变动时,其业务量增加时的成本增加量大于业务量等额减少时的成本减少量,这与大多数管理会计教材中传统的成本性态模型认为成本的变动率和业务量变动的对称性是矛盾的。本文通过对我国927家A股上市公司的2001—2005年的数据测试发现:(1)我国上市公司存在着成本粘性;(2)时间范围越长,成本粘性水平越小;(3)成本粘性与业务量的变化幅度有关,随着收入的大幅下降,成本粘性变小;(4)各个行业和公司属性也影响成本粘性水平,资本密集型和劳动密集型公司成本粘性水平较高。

The definition of cost stickiness is that costs increase more with activity increase than they decrease in response to equivalent activity decrease.This sticky cost behavior contradicts the traditional managing accounting model which assumes that costs behave symmetrically for activity increases and decreases.Using a sample of 927 Chinese A-share listed firms during the period 2001-2005,we can find these results :1)there is cost stickiness behavior in Chinese listed firms;2)over a longer accounting period,the level of cost stickiness becomes lower;3)after more decrease of revenue,the level of cost stickiness also drops;4)Firm-specific and industry characteristics also impact on levels of cost stickiness.The data support the notion that cost stickiness is associated with the firms' capital and labor intensity.