Template-Type: ReDIF-Paper 1.0 Series: Tinbergen Institute Discussion Papers Creation-Date: 2005-03-22 Number: 05-031/2 Author-Name: Silvia Caserta Author-Email: caserta@few.eur.nl Author-Workplace-Name: Faculty of Economics, Erasmus Universiteit Rotterdam Author-Name: Casper G. de Vries Author-Email: cdevries@few.eur.nl Author-Workplace-Name: Faculty of Economics, Erasmus Universiteit Rotterdam Title: Auctions with Numerous Bidders Abstract: We study auctions in which the number of potential bidders is large, such as in Internet auctions. With numerous bidders, the expected revenue and the optimal bid function in a first price auction result in complicated expressions, except for a few simple distribution function for the bidders' valuations. We show that these expressions can be well approximated using extreme value theory without assuming a particular distribution function. The theory is applied to data from Internet auctions. Classification-JEL: D44 Keywords: Auctions; Numerous bidders; Extreme values; Internet auctions File-Url: https://papers.tinbergen.nl/05031.pdf File-Format: application/pdf File-Size: 343058 bytes Handle: RePEc:tin:wpaper:20050031