G2TT
来源类型Discussion paper
规范类型论文
来源IDDP8461
DP8461 Competition leverage: how the demand side affects optimal risk adjustment
jan boone; Gijsbert Zwart
发表日期2011-06-01
出版年2011
语种英语
摘要We study optimal risk adjustment in imperfectly competitive health insurance markets when high-risk consumers are less likely to switch insurer than low-risk consumers. First, we find that insurers still have an incentive to select even if risk adjustment perfectly corrects for cost differences among consumers. Consequently, the outcome is not efficient even if cost differences are fully compensated. To achieve first best, risk adjustment should overcompensate for serving high-risk agents to take into account the difference in mark-ups among the two types. Second, the difference in switching behavior creates a trade off between efficiency and consumer welfare. Reducing the difference in risk adjustment subsidies to high and low types increases consumer welfare by leveraging competition from the elastic low-risk market to the less elastic high-risk market. Finally, mandatory pooling can increase consumer surplus even further, at the cost of efficiency.
主题Industrial Organization
关键词Health insurance Imperfect competition Leverage Risk adjustment
URLhttps://cepr.org/publications/dp8461
来源智库Centre for Economic Policy Research (United Kingdom)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/537289
推荐引用方式
GB/T 7714
jan boone,Gijsbert Zwart. DP8461 Competition leverage: how the demand side affects optimal risk adjustment. 2011.
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