This paper examines how product differentiation as well as strategic managerial delegation affects optimal emission tax rate, environmental damage and social welfare, under alternative modes of product market competition. It shows that, under pure profit maximization, the (positive) optimal...

This paper revisits the classic profit-ranking of Cournot and Bertrand equilibria and the issue of endogenous choice of strategic variables for product market competition, but for a network goods duopoly. It demonstrates that in the case of strong network externalities and imperfect-substitute...