Income Elasticity of Vaccines Spending versus General Healthcare Spending
利用84个国家2010-2011年的数据，估计疫苗支出和一般医疗支出的收入弹性分别为0.336和0.844，发现疫苗支出随收入增长的弹性远低于一般医疗，说明仅靠经济增长难以快速提高疫苗覆盖率。
Using cross-country data on gross domestic product and national expenditure on vaccines, we estimate and compare the income elasticity of vaccine expenditure and general curative healthcare expenditure. This study provides the first evidence on the national income elasticity of vaccination spending. Both fixed and random effects models are applied to data from 84 countries from 2010 to 2011. The income elasticities for healthcare expenditure and vaccine expenditure are 0.844 and 0.336, respectively. Despite vaccines' high cost-effectiveness, the national propensity to spend income on vaccines as income increases lags behind general health care. The low income elasticity of vaccine spending means that relying on economic growth alone will provide an unacceptably slow trajectory to achieving high vaccine coverage levels. Copyright © 2015 John Wiley & Sons, Ltd.