Folgen des Wettbewerbs zwischen Krankenversicherungen für die Kosten im Gesundheitswesen
In this study it is argued that competition among health insurers can bring about higher costs in the health care sector. Medical services are inhomogeneous goods; thus the competition between physicians can be modeled by Chamberlins concept of monopolistic competition. The physicians have a strong bargaining power face to face a multitude of competing health insurers acting as purchasers of health care services. The costs can be lower if the physicians’ strong position is compensated by a monopolistic health insurer. Two case studies show the applicability of the argument. A regression analysis confirms the correlation between (public) monopolistic health insurer and lower costs in the health care sector.
