Katsoulacos, Yannis; Xepapadeas, Anastasios - In: Scandinavian Journal of Economics 97 (1995) 3, pp. 411-20
Emission taxes under both fixed-number oligopoly and endogenous market structure, which are the most relevant market structures for policy issues, are examined. In the latter case, and contrary to what is expected under imperfect competition, the optimal tax could exceed marginal external...