Collusion through communication in auctions
Marina Agranov and
Games and Economic Behavior, 2018, vol. 107, issue C, 93-108
We study the extent to which communication can serve as a collusion device in one-shot first- and second-price sealed-bid auctions. In an array of laboratory experiments we vary the amount of interactions (communication and/or transfers without commitment) available to bidders. We find that communication alone leads to statistically significant but limited price drops. When, in addition, bidders can exchange transfers, revenues decline substantially, with over 70% of our experimental auctions culminating in the object being sold for approximately the minimal price. Furthermore, the effects of communication and transfers are similar across auction formats. We contrast these results with those generated in repeated auctions. By and large, repeated auctions yield lower collusion and lower efficiency levels.
Keywords: Auctions; Communication; Collusion; Experiments (search for similar items in EconPapers)
JEL-codes: D4 D8 C9 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:gamebe:v:107:y:2018:i:c:p:93-108
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