全民健保對家戶醫療支出之效果：Difference-in-Differences模型與分量迴歸模型分析

Abstract

During recent twenty years in Taiwan, the household’s medical care expenditures of public sector or private sector are constantly increased. The gap between the household’s medical care expenditures of public sector and private sector is constantly widened after the implementation of National Health Insurance (NHI). The purpose of this study is to estimate the effects of the household’s medical care expenditures by using difference-in-differences model. It aimed at the difference among within and between groups of control group and treated group to discuss the treatment effects of the household’s medical care expenditure after the implementation of NHI. Then we use quantile regression model to estimate the treatment effects of the household’s medical care expenditures in each component location. In our empirical results, the treatment effects of the household’s medical care expenditures from the long-term viewpoint are significantly larger than the short-term viewpoint. Furthermore, the treatment effects of the household’s medical care expenditure are largest, if we take the household whom the head works in private sector to relative to the one whom the head works in public sector. It also can see the treatment effects of the household’s medical care expenditure are largest, if we pay the attention on the household whom the age of head is older.