With a laboratory experiment, we study the impact of buy-options and the corresponding buy-price on revenues and bidding behavior in (online) proxy-auctions with independent private valuations. We show that temporary buy-options may reduce revenues for two reasons: At low buy-prices, the...

In this paper we present a new iterative acution, the bisection auction, that can be used for the sale of a single indivisible object. We will show that the bisection auction is computationally more efficient than the classical English auction while it still preserves all characteristics the...