财务比率分析中算术平均数陷阱与序时平均数的置入

Arithmetical Average Trap in Financial Ratio Analysis and Chronological Average Placement

在分析财务比率中因使用简单算术平均数而出现的种种陷阱的基础上,指出了为克服简单算术平均数易受个别或少数极端值影响和只从静态上说明总体水平的缺陷,有必要引入序时平均数,并以存货周转率、应收账款周转率和净资产收益率三个比率进行计算分析说明序时平均数能从动态上反映企业的经营状况,能更好地为企业相关者提供可靠的财务信息。

Based on the analysis of all the traps in financial ratios by using simple arithmetic average,we propose that it should be necessary to introduce chronological average to overcome the defect of the simple arithmetic average that is liable to the influence of extreme values and describes the phenomenon only from a static perspective.Three indicators of the inventory turnover,accounts receivable turnover ratio and return on net assets are used to prove that chronological average can not only dynamically reflect business situation of enterprises but also provide relevant and reliable financial information.