A theoretical framework for TTO valuations of health
基于希克斯效用理论，为时间权衡法（TTO）提出理论框架，区分四种估值方法，帮助理解健康状态与寿命的权衡。
This paper proposes a theoretical framework, drawing on Hicks utility theory, for the Time Trade-off (TTO) method conventionally used to value health states. We briefly describe that theory and posit four distinctive TTO valuation approaches suggested by it: each of compensating variation and equivalent variation for both gains and losses in health, with valuation of health states in each case derived from trade-offs between health and length of life. Recent developments and research on TTO valuation are placed in the context of this framework.