We analyze the welfare consequences of an increase in the commissions charged by the organizer of an auction. Commissions are similar to taxes imposed on buyers and sellers and the economic problem that results looks similar to the question of tax incidence in consumer economics. We argue,...

The anomaly is concerned with the observation that in multiple-item auctions of identical objects, prices tend to decline over time. I show that in the case of wine auctions, which have been analyzed frequently, the anomaly is likely to be caused by the fact that most bids are entered by...