Indirect taxes in oligopoly in presence of licensing opportunities

This paper considers the relative efficiency of unit tax and ad valorem tax in Cournot doupoly in the presence of licensing opportunities after the announcement of the tax rates by the government. Anderson et al. (2001) shows that in such a case ad valorem tax welfare dominates the unit tax. However, it ignores the licensing possibilities. Interestingly, it is shown in the present paper that in case of fixed-fee licensing unit tax sometimes dominates ad valorem tax. However, unit tax and ad valorem tax are equally efficient in case of royalty licensing.