Private Vaccination and Public Health: An Empirical Examination for U.S. Measles
利用1984-1990年美国国民健康访问调查数据，发现麻疹发病率越高，儿童首次接种麻疹疫苗的月龄越小，表明疾病流行会促使人们更早接种，从而削弱价格补贴等公共健康措施的效果。
This paper investigates the degree to which the occurrence of vaccinepreventable diseases affects vaccination efforts against such diseases. Using data from the National Health Interview Survey on measles vaccinations in the United States between 1984 and 1990, the paper shows there is strong evidence that the prevalence of measles in the respondent's state of residence reduces the age in months at which the first measles vaccination occurs. The paper argues that the more prevention of infectious disease responds to prevalence in this manner, the less it responds to price, thereby lowering the role of Pigouvian price subsidies and other demand-stimulating public health measures aimed at solving the under-provision of vaccines and other preventive efforts with positive external effects.