文章在Grossman健康生产函数的基础上纳入环境污染因素,使用世界116个国家(地区)1997--2009年的面板数据,验证了环境污染对国民健康的影响、差异及公共服务因素的作用。研究发现:环境污染对国民健康的影响是显著的,当加入若干公共服务因素后,该影响会出现不同程度的下降,环境的健康效应在不同性别间和国家间存在差异;在不同健康水平上,环境污染的影响差异同样明显。门槛回归模型分析表明,各国(地区)环境健康风险的差异很大程度上受制于该国(地区)公共服务水平,当教育、基础设施、卫生公共服务和环境公共服务跨过了各自的门槛时,环境污染对健康的影响会出现一定程度的下降。通过完善基本公共服务体系来治理环境污染的健康风险,不仅能够有效减少环境污染所产生的健康威胁,而且还能够提升整体公共服务水平和社会福祉。
Based on the introduction of environmental pollution factors into Grossman's health production function, this paper verifies the effects of environmental pollution on national health, their differences and the role of public service factors by using the panel data of 116 countries or regions from 1997 to 2009. It comes to the following conclusions, firstly, the effect of environmental pollution on national health is significant, and after the in- troduction of some public services factors, this effect decreases to some dif- ferent extent; secondly, the environmental health effects vary with the sex and the country; thirdly, the effects of environmental pollution on different health levels differ widely. The analysis of threshold regression model indi- cates that the differences of environmental health risks between countries or regions are largely subject to the differences in public services levels, that is to say, when education, infrastructure, public health services and environ- mental public services exceed their thresholds, the effects of environmental pollution on health will decline to a certain extent. The governance of health risks of environmental pollution by the perfection of basic public services system not only can effectively reduce health threats, but also can raise the whole public services level and social welfare.