Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
This paper analyzes how individuals can insure premium risk and obtain high quality health insurance in a managed care environment. Insurers choose health care providers. Only a fraction of high risk individuals is unambiguously identifiable in front of a court. Premium insurance is not able to reach a first-best risk allocation while health insurers have an incentive to stint on quality under guaranteed renewable contracts. It is shown that a contract exists which can implement the first-best. This contract specifies payments to individuals and a third party upon switching to create a credible self-commitment by the insurer to provide high quality. Copyright 2001 by Kluwer Academic Publishers