This paper studies whether collusion occurs in three-bidder three-object second-price hard-close auctions. The experimental results of two laboratory treatments are reported. The first one, the anonymity treatment, involves subject groups that can trace decisions to the bidder under conditions...

The tension between cooperation and competition that characterizes many business relationships is experimentally studied in a 'pie'-creation game; value is created and increased through cooperation in a repeated prisoner's dilemma game. At the end, the player with the greater stake in the joint...