The Zero-Condition: A Simplifying Assumption in QALY Measurement and Multiattribute Utility
研究零条件对多属性效用理论的影响，该条件简化了医疗决策分析中常用的质量调整生命年（QALY）的测量和推导，并提出了标准博弈不变性这一简单条件。
This paper studies the implications of the “zero-condition” for multiattribute utility theory. The zero-condition simplifies the measurement and derivation of the Quality Adjusted Life Year (QALY) measure commonly used in medical decision analysis. For general multiattribute utility theory, no simple condition has heretofore been found to characterize multiplicatively decomposable forms. When the zero-condition is satisfied, however, such a simple condition, “standard gamble invariance,” becomes available.