Monopoly,rent-seeking,and second best theory

In the context of a simple general equilibrium model, in which there is a profit-maximizing monopolist, we show that in general the introduction of rent-seeking does not restore the first best pricing rule for the undistorted industry. This result is in direct contrast to that obtained when one assumes that the monopolist follows a full cost pricing rule with a constant markup ratio. Furthermore, it still holds even if the full cost pricing rule is profit-maximizing. We also investigate the conditions under which the first best pricing rule is reinstated for the undistorted industry.