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Nonparametric bounds on the effect of deductibles in health care insurance on doctor visits – Swiss evidence
Author(s) -
Gerfin Michael,
Schellhorn Martin
Publication year - 2006
Publication title -
health economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.55
H-Index - 109
eISSN - 1099-1050
pISSN - 1057-9230
DOI - 10.1002/hec.1113
Subject(s) - actuarial science , nonparametric statistics , health insurance , health care , medicine , economics , econometrics , economic growth
We evaluate the effect of the size of deductibles in the basic health insurance in Switzerland on the probability of a doctor visit. We employ nonparametric bounding techniques to minimise statistical assumptions. In order to tighten the bounds we consider two further assumptions: mean independence of an instrument and monotone treatment response. Under these two assumption we are able to bound the causal effect of high deductibles compared to low deductibles below zero. We conclude that the difference in health care utilisation is partly due to a reduction of moral hazard effects. Copyright © 2006 John Wiley & Sons, Ltd.