This article reports the results of a first-price sealed-bid auction experiment, which has been designed to test the Nash equilibrium predictions of individual bidding behavior. Subjects faced in 100 auctions always the same resale value and competed with computerized bids. Three treatments were...

Experimental sealed bid first price auctions with private values in which feedback onthe losing bids is provided yield lower revenues than auctions where this feedback isnot given. Furthermore, bids tend to be above the equilibrium predictions for riskneutral bidders. While the latter...