2020/08/04 by Alex Suzdaltsev, Suzdaltsev, Alex
Decision Sciences · Business, Management and Accounting · Economics, Econometrics and Finance · #Auction Theory and Applications #Consumer Market Behavior and Pricing #Merger and Competition Analysis
paper · pdf · doi:10.48550/arxiv.2008.01618
A seller chooses a reserve price in a second-price auction to maximize worst-case expected revenue when she knows only the mean of value distribution and an upper bound on either values themselves or variance. Values are private and iid. Using an indirect technique, we prove that it is always optimal to set the reserve price to the seller's own valuation. However, the maxmin reserve price may not be unique. If the number of bidders is sufficiently high, all prices below the seller's valuation, including zero, are also optimal. A second-price auction with the reserve equal to seller's value (or zero) is an asymptotically optimal mechanism (among all ex post individually rational mechanisms) as the number of bidders grows without bound.