colluding agents can be used to reduce the revenue losses from collusion. In a class of environments we show that the principal … optimal mechanisms can be implemented as uniquely collusion-proof mechanisms. …

We experimentally examine the collusive properties of two commonly used auctions: the English auction (EN) and the … first-price sealed-bid auction (FPSB). In theory, both tacit and overt collusion are always incentive compatible in EN while … auctions do not differ in subjects’ propensity to collude overtly and in the likelihood that subjects defect from a collusive …

We experimentally examine the collusive properties of two commonly used auctions: the English auction (EN) and the … first-price sealed-bid auction (FPSB). In theory, both tacit and overt collusion are always incentive compatible in EN while … auctions do not differ in subjects’ propensity to collude overtly and in the likelihood that subjects defect from a collusive …

decreases with repetition. Theory predicts that repetition facilitates collusion among sellers in procurement auctions, while … activities. We use an economic experiment to examine whether the market efficiency of conservation auctions increases or … effects, the latter has the upper hand; average bids decrease monotonically over the consecutive auctions. Since repetition …

In many auctions, the auctioneer is an agent of the seller. This delegation invites corruption. In this paper we … bidding, and how it altogether changes the revenue ranking of typical auctions. In addition we characterize incentive schemes …

This paper explores the impact of debarment as a deterrent of collusion in first-price procurement auctions. We develop … both reduce collusion and bids. The deterrent effect of debarment increases in its length. However, the debarment of … reduction resulting from debarment may trigger tacit collusion. …

In first- and second-price private value auctions with sequential bidding, second movers may discover the first movers … eliminate the usual revenue dominance of first- over second-price auctions. With a high leak probability, second-price auctions …

During the recent sales of UMTS licenses in Europe some countries used auctions while others resorted to so … argument why beauty contests or negotiations might be dominated by auctions, which is closely linked to the multi …

We study first- and second-price private value auctions with sequential bidding where second movers may discover the … usual revenue dominance of first-price over second-price auctions. With a high probability of a leak, second-price auctions …