Selection and moral hazard effects in healthcare

Minke Remmerswaal, Jan Boone () and Rudy Douven ()
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Jan Boone: CPB Netherlands Bureau for Economic Policy Analysis
Rudy Douven: CPB Netherlands Bureau for Economic Policy Analysis

No 393, CPB Discussion Paper from CPB Netherlands Bureau for Economic Policy Analysis

Abstract: In the Netherlands, average healthcare expenditures of persons without a voluntary deductible are twice as high as average healthcare expenditures of persons with a voluntary deductible. When assessing the effects of voluntary cost-sharing in healthcare on healthcare expenditures, it is important to disentangle moral hazard from selection: are healthcare expenditures low because people pay (a bigger share of) their healthcare expenditures out-of-pocket? Or are people with higher cost-sharing levels healthier? In this study, we separate selection from moral hazard for the combined mandatory and voluntary deductible in the Netherlands. We use proprietary claims data from Dutch health insurers and exploit with a panel regression discontinuity design that we can observe healthcare expenditures before and after the deductibles kick in for 18 year olds. Our study shows that selection, not moral hazard, is the main effect explaining the difference in healthcare expenditures between persons with and without a voluntary deductible. Furthermore, we find that 18 year olds who never chose a voluntary deductible reduce their healthcare spending by 26 euros (on average) in response to a 100 euro increase in the (mandatory) deductible. However, for 18 year olds who chose a voluntary deductible (on top of the mandatory) we find that this choice does not result in a further reduction in healthcare spending.

JEL-codes: H51 I11 I13 (search for similar items in EconPapers)
Date: 2019-03
New Economics Papers: this item is included in nep-hea and nep-ias
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Citations: View citations in EconPapers (1)

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