Kind, Hans Jarle; Koethenbuerger, Marko; Schjelderup, … - Institutt for foretaksøkonomi, Norges Handelshøyskole … - 2009
A benchmark result in public economics is that it is possible to increase both tax revenue and welfare by making a monopoly subject to ad valorem taxes rather than unit taxes. We show that such revenue and welfare dominance does not hold in two-sided markets.