We present and estimate a model of competition in a two-sided market: the market for magazine readership and advertising. Using data on magazines in Germany, we find evidence that magazines have properties of two-sided markets. The results are consistent with the perception that prices for...

Many platforms that facilitate transactions between buyers and sellers charge ad valorem fees in which fees depend on the transaction price set by sellers. Given these platforms do not incur significant costs that vary with transaction prices, their use of ad valorem fees has raised...

Platforms use price parity clauses to prevent sellers charging lower prices when selling through other channels. Platforms justify these restraints by noting they are needed to prevent free-riding, which would undermine their incentives to invest in their platform. In this paper, we study the...

We build a model of credit card pricing that explicitly takes into account credit functionality. We show that a monopoly card network always selects an interchange fee that exceeds the level that maximizes consumer surplus. If regulators only care about consumer surplus, a conservative...

An important recent event in the economics field is the introduction of seven new society journals. Using standard iterative ranking methodologies from economics, as well as some new methodologies, we demonstrate the spectacular rise of these journals while updating journal rankings for all...