Cost-of-Illness and Willingness-to-Pay Estimates of the Benefits of Improved Air Quality: Evidence from Taiwan
比较了疾病成本法和支付意愿法对空气污染导致轻微呼吸道症状损失的估计，发现支付意愿是疾病成本的1.61到2.26倍，比率与美国相似。
We compare cost-of-illness (COI) and willingness-to-pay (WTP) estimates of the damages from minor respiratory symptoms associated with air pollution, using data from a study in Taiwan in 1991-92. A contingent valuation survey was conducted to estimate WTP to avoid minor respiratory illnesses. Health diaries were analyzed to predict the likelihood and cost of seeking relief from symptoms and of missing work. As predicted by economic theory, WTP is greater than the COI estimates, exceeding the latter by 1.61 to 2.26 times, depending on pollution levels. These ratios are similar to those for the United States, despite the differences between the two countries