增量分析亦称临界比分析，是日本人佐佐木恭平提出的一种特殊的决策方法。主要用于解决重复性风险型决策中有多个决策方案和客现状态的决策问题。以减少计算工作量，提高决策效率，收到事半功倍的效果。“增量”就是指变量每增加一个数量单位的意思。“增量成本”就是指每增加 Incremental analysis, also known as critical ratio analysis, is a special method of decision-making proposed by Japanese Sasaki Kompei. It is mainly used to solve the decision-making problem of multiple decision-making schemes and guest-off states in repetitive risk-based decision-making. In order to reduce the computational workload and increase the efficiency of decision-making, it has achieved a multiplier effect. “Incremental” means the meaning of each increment of a variable unit. “Incremental cost” means every increase