Optimal nondiscriminatory auctions with favoritism

In many auction settings, there is favoritism: the seller´s welfare depends positively on the utility of a subset of potential bidders. However, laws or regulations may not allow the seller to discriminate among bidders. We find the optimal nondiscriminatory auction in a private value, single-unit m...

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Bibliographic Details
Authors: Arozamena, Leandro Roberto, Shunda, Nicholas, Weinschelbaum, Federico
Format: article
Status:Published version
Publication Date:2014
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/35578
Online Access:http://hdl.handle.net/11336/35578
Access Level:Open access
Keyword:Auctions
Favoritism
Nondiscriminatory Mechanisms
https://purl.org/becyt/ford/5.2
https://purl.org/becyt/ford/5
Description
Summary:In many auction settings, there is favoritism: the seller´s welfare depends positively on the utility of a subset of potential bidders. However, laws or regulations may not allow the seller to discriminate among bidders. We find the optimal nondiscriminatory auction in a private value, single-unit model under favoritism. At the optimal auction there is a reserve price, or an entry fee, which is decreasing in the proportion of preferred bidders and in the intensity of the preference. Otherwise, the highest-valuation bidder wins. We show that, at least under some conditions, imposing a no-discrimination constraint raises expected seller revenue.