经典的财务管理学中,息税前利润EBIT=Q(P-V)-F,保持P、V、F不变,可以推导出经营杠杆系数(DOL),用来反映经营风险的大小。若假设其中任意三个变量不变,则可以推导出关于另外一个变量的杠杆系数,且均可反映经营风险。基于此分析,推导出其他三个杠杆:价格杠杆、变动成本杠杆和固定成本杠杆,并基于对四大经营风险杠杆的分析,提出其实践运用意义。 In the classic financial management, EBIT = Q (P-V) -F, which keeps the constant of P, V and F, can derive the operating leverage coefficient (DOL) to reflect the size of the business risk. If we assume that any three of them do not change, we can derive the leverage coefficient about the other variable, which can all reflect the business risk. Based on this analysis, the other three levers are deduced: price leverage, variable cost leverage and fixed cost leverage. Based on the analysis of the four operational risk levers, the author puts forward their practical significance.