Eugster, Patrick; Sennhauser, Michèle; Zweifel, Peter - In: Journal of Health Economics 29 (2010) 4, pp. 499-507
When premiums are community-rated, risk adjustment (RA) serves to mitigate competitive insurers' incentive to select favorable risks. However, unless fully prospective, it also undermines their incentives for efficiency. By capping its volume, one may try to counteract this tendency, exposing...