Pennsylvania sought to enjoin the merger between Defendants, Capital Health System Services and Polyclinic Health System, alleging that the merger would substantially lessen competition in the market for hospital services by eliminating an effective competitor. In order to consummate the merger, Defendants agreed to a consent decree that a set percentage of the efficiency savings be passed on to hospital services purchasers. Further the consent decree limited the extent to which the hospital could increase prices, and it prohibited certain types of exclusive dealings arrangements.