Platforms often use fee discrimination within their marketplace (e.g., Amazon, eBay, and Uber specify a variety of merchant fees). To better understand the impact of marketplace fee discrimination, we develop a model that allows us to determine equilibrium fee and category decisions that depend...

This study aims at characterizing the optimal regulation of risky activities when risk assessment is subjective as a result of ambiguity on the probability of an accident. The attitudes toward ambiguity held by stakeholders form subjective risk perceptions, which substantially affect the optimal...

This paper analyses monopolistic third-degree price discrimination in the presence of consumption externalities within two separate markets. Assuming linear inverse demands, we investigate an associated change in social welfare (the sum of the consumers' surpluses and the producer's profit) with...