Health plan choice - Price elasticities in a managed competition setting

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 Sor 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.