Limited Liability and Market Power

This paper evaluates the welfare effects of limited liability on firm behavior when market power is present. A risk-neutral monopolist facing uncertain demand (with constant returns to scale technology) produces higher output, yielding higher expected profits when costless exit is induced by limited liability. The higher output may increase social welfare (monopolist profit plus consumer surplus) even though the monopolist may overproduce relative to the quantity that maximizes social welfare. When no market power is present, the overproduction resulting from the provision of limited liability results in loss of social welfare. Appropriate use of liability limitation laws can thus provide policy makers an additional policy instrument with which to mitigate the effects of market power. [PUBLICATION ABSTRACT]