In a general auction model with affiliated signals, common components to valuations and endogenous entry, we compute the equilibrium bidding strategies and outcomes, and derive a lower bound on the optimal reserve price. This lower bound can be computed using data on past auctions combined with...

We analyze competing strategic platforms setting fees to a local monopolist merchant and granting cash-back rebates to end users, when the merchant is prevented from surcharging platforms customers, as frequently occurs with credit cards. Each platform has an incentive to gain transactions by...

In a general auction model with affiliated signals, common components to valuations and endogenous entry, we compute the equilibrium bidding strategies and outcomes, and derive a lower bound on the optimal reserve price. This lower bound can be computed using data on past auctions combined with...