Kifmann, Mathias; Lorenz, Normann - In: Vierteljahrshefte zur Wirtschaftsforschung / Quarterly … 73 (2004) 4, pp. 539-554
In this paper, we present a method to derive the optimal cost sharing formula to reduce risk selection in community-rated health insurance markets. Our main result is that selection incentives are reduced most effectively when costs are reimbursed where the share of high risk types exceeding...