In this paper, we compare ad valorem and specific taxation under heterogeneous demand when a monopolist offers a menu of two-part tariffs. An increase in either tax rate leads to a higher usage fee for all consumers, whereas the fixed fee under reasonable assumptions will fall. If the government...

This paper studies the role of transfers among groups within a country as well as among countries in a two level game of international trade negotiations. We show that in order to realize the intended transfer in the presence of asymmetric information on the states of recipients (and donors), a...