What can happen if Blues compete

Philadelphia Inquirer, June 9, 2008

When public hearings on the proposed merger of Pennsylvania's two largest health insurers begin, speakers opposed to the deal are sure to complain that a combination of Independence Blue Cross and Highmark Inc. would quash competition. In the Philadelphia marketplace, Independence Blue Cross dominates its competitors,but both it and Highmark say they need to get bigger to fend off national insurers such as Aetna Inc.