-valorem taxes. We show that (i) a monopoly may have too high output compared to the social optimum; (ii) output may be reduced by …

that the monopoly platform does not introduce distortions over and above those arising from the market power of the …

typically noisy. Also, the market for information tends to be a monopoly, and there is typically inefficiency given by …

We analyze the incidence and welfare effects of unit sales taxes in experimental monopoly and Bertrand markets. We find …, in line with economic theory, that firms with no market power are able to shift a high share of a tax burden on to … consumers, independent of whether buyers are automated or human players. In monopoly markets, a monopolist bears a large share …