Optimal medical insurance coverage in incomplete markets
學年 87
學期 2
發表日期 1999-03-25
作品名稱 Optimal medical insurance coverage in incomplete markets
作品名稱（其他語言）
著者 侯德明; Hau, Arthur
作品所屬單位 淡江大學產業經濟學系
出版者
會議名稱 健康經濟國際學術研討會=Taipei International Conference on Health Economics
會議地點 臺北市, 臺灣
摘要 This paper studies the optimal insurance coverage of an individual under three different types of medical insurance market incompleteness: (1) the presence of an uninsurable background risk,(2) the possibility of the insurer's default, and (3) the uninsurability of the insured's health condition. While the effects of the background risk and the default risk on insurance coverage have been studied in the literature, the effect of the uninsurability of an individual's health condition has received little attention. The possibility that no medical expenditure is incurred with non-trivial probability is explicitly considered. This paper points out that, while using the coinsurance rate of one as the definition of "full-insurance coverage" works well under the first and third types of market incompleteness, a more appropriate definition called"full-insurance on average" should be used under default risk. The conditions under which full-insurance on average is or is not optimal are derived for each type of market incompleteness. By employing the"regressibility assumption" used in the literature of indirect hedging of exchange rate risk, this paper obtains results which are parsimonious and provide intuitive explanations to some of the ambiguous results in the literature.
關鍵字 背景風險;違約風險;醫療保險;不良保險市場;健康狀況;Background Risk;Default Risk;Medical Insurance;Imcomplete Insurance Market;Health Status
語言 en
收錄於
會議性質 國際
校內研討會地點
研討會時間 19990325~19990325
通訊作者
國別 TWN
公開徵稿 Y
出版型式 紙本
出處 健康經濟國際學術研討會論文集=Proceedings of Taipei International Conference on Health Economics，頁41303
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