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Paper Information

Journal:   IRANIAN JOURNAL OF PUBLIC HEALTH   JULY 2012 , Volume 41 , Number 7; Page(s) 44 To 52.
 
Paper: 

EVIDENCE OF ADVERSE SELECTION IN IRANIAN SUPPLEMENTARY HEALTH INSURANCE MARKET

 
 
Author(s):  MAHDAVI GH.*, IZADI Z.
 
* ECO COLLEGE OF INSURANCE, ALLAMEH TABATABAI UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Background: Existence or non-existence of adverse selection in insurance market is one of the important cases that have always been considered by insurers. Adverse selection is one of the consequences of asymmetric information. Theory of adverse selection states that high-risk individuals demand the insurance service more than low risk individuals do.
Methods: The presence of adverse selection in Iran’s supplementary health insurance market is tested in this paper. The study group consists of 420 practitioner individuals aged 20 to 59. We estimate two logistic regression models in order to determine the effect of individual’s characteristics on decision to purchase health insurance coverage and loss occurrence. Using the correlation between claim occurrence and decision to purchase health insurance, the adverse selection problem in Iranian supplementary health insurance market is examined.
Results: Individuals with higher level of education and income level purchase less supplementary health insurance and make fewer claims than others make and there is positive correlation between claim occurrence and decision to purchase supplementary health insurance.
Conclusion: Our findings prove the evidence of the presence of adverse selection in Iranian supplementary health insurance market.

 
Keyword(s): ASYMMETRIC INFORMATION, SUPPLEMENTARY HEALTH INSURANCE, ADVERSE SELECTION, LOGISTIC REGRESSION MODEL
 
References: 
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