Optimal privatisation, and optimum-welfare and maximum-revenue tariffs

We examine the effect of privatisation on the priority of the maximum-revenue tariff and the optimum-welfare tariff in an international mixed oligopoly with foreign competition and optimal privatisation. We demonstrate that when the marginal cost of the domestic privatised firm is high enough, the optimum-welfare tariff will exceed the maximum-revenue tariff. Moreover, due to the higher tariff rate that leads to the high degree of privatisation, the optimum-welfare tariff generates greater optimal privatisation than the maximum-revenue tariff does. Lastly, when the gap between the number of domestic private firms and that of their foreign counterparts becomes larger, the optimum-welfare tariff will exceed the maximum-revenue tariff.