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. …

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 …

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 …

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 …

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 …

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. …

behavior in an environment with repeated auctions, pivotal suppliers and inelastic demand. The price increase can be traced … back to an abuse of the auction’s pay-as-bid mechanism by the two largest firms. In contrast to theoretical findings, we … show that pay-as-bid auctions do not necessarily reduce incentives for strategic capacity withholding and collusive …

We use data on sequential water auctions to estimate demand when units are complements or substitutes. A sequential …

The theoretical literature on collusion in auctions suggests that the first-price mechanism can deter the formation of … collusion in first-price and second-price auctions. Furthermore, failed collusion attempts distort the bidding behavior in the … neglects the effects of failed collusion attempts. In such contingencies, information revealed in the negotiation process is …