We find robust gender differences in bidding behavior in sealed bid auctions with independent and private valuations in a laboratory setting. In particular, we find that women bid significantly higher and earn significantly less than men do in the first-price auction, while we find no evidence...

I show that in a private value multi-unit uniform-price auction, the reservation price increases both the efficiency and revenue. In equilibrium the difference between the true value of a unit and the submitted bid (shading) is different for each unit; therefore, the seller cannot allocate units...