Health Plan Choice: Price Elasticities in a Managed Competition Setting
利用一家公司员工的健康计划选择数据，估计管理竞争环境下的价格弹性，发现弹性绝对值大于以往研究，且老年和健康状况较差的员工存在转换成本，可能导致逆向选择。
Using a unique panel dataset of health plan choices and personal characteristics of employees at a single firm, this paper provides estimates of price elasticities for health insurance plans in a managed competition setting. Estimated price elasticities are larger in absolute value than most previous estimates and the magnitude of the price elasticity suggests that there is a place for price competition in this market. We also find evidence of transition costs in switching health plans for older and less healthy employees. Such differential responses to price may contribute to adverse selection in this market.