Unionized Labor Market and Regulation of Monopoly

In developing countries, empirical evidence suggests that labor unions entail a positive wage gap for unionized workers, in particular in monopolistic and publicly controlled firms. In this paper, we analyze how the presence of a labor union affects the regulation of a monopoly under asymmetric information. Since part of the informational rent left to the monopolistic firm benefits to the syndicate, we prove that the regulator is induced to lower the rent when the union has a large bargaining power. The net consumers' surplus can either increase or decrease with the firm's bargaining power depending on the firm's efficiency type. JEL