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Title: Cost-sharing in health insurance and its impact in a developing country– evidence from a quasi-natural experiment
Authors: Ha, Nguyen Trong
Connelly, Luke B
Keywords: Health insurance
A developing country
A quasi-natural experiment
Issue Date: 2017
Series/Report no.: MPRA Paper;
Abstract: Though the impact of cost-sharing on health care demand is well documented in developed countries, evidence from developing countries is rare. This paper’s contribution is to analyse the impact of increasing coinsurance in a developing nation, Vietnam, by exploiting a quasi-natural experiment in that country. In 2007, the Vietnam government reintroduced a 20 percent coinsurance for individuals who hold voluntary health insurance policies. As individuals with compulsory health insurance were exempt from this re-imposition of coinsurance, this policy change may be regarded as a quasi-natural experiment. To exploit this change, we use a difference-in difference approach to examine whether the increase in coinsurance effectively reduced the demand for health care services among those affected. We find it has no statistically significant effect on the quantity of health care demanded. We however find that those who were under 18 or in low income households reduced their health care use after the increase in coinsurance. These findings hold – at least in the short-run, with a variety of different outcomes and estimators.
Appears in Collections:Health care

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