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Comparative Antitrust Damages in Bid-Rigging Cases: Some Findings from a Used Vehicle Auction

In order to recover antitrust damages, the plaintiff in a bid-rigging case must be able to prove the amount of the price change suffered as a result of a conspiracy. However, despite a large theoretical literature on auctions and competitive bidding, there are only a few published studies of the possible effects of bid-rigging on auction prices.' One result of this lack of empirical evidence is