We contribute to the literature on the optimal design of auction mechanisms for the procurement of nature conservation … decreases with repetition. Theory predicts that repetition facilitates collusion among sellers in procurement auctions, while …

’ bid. Equilibrium behavior in the first-price auction is mostly unaffected but there are multiple equilibria in the second …- price auction. Consequently, comparative statics across price rules are equivocal. Experimentally, leaks in the first- price … auction favor second movers but harm first movers and sellers, as theoretically predicted. Low to medium leak probabilities …

first movers bids. There is a unique equilibrium in the first-price auction and multiple equilibria in the second …-price auction. Consequently, comparative statics across price rules are equivocal. We experimentally find that in the first …-price auction, leaks benefit second movers but harm first movers and sellers. Low to medium probabilities of leak eliminate the …