Aleksandar Sasa Pekec

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Information aggregation, a key concern for uniform-price, common-value auctions with many bidders, has been characterized in models where bidders know exactly how many rivals they face. A model allowing for uncertainty over the number of bidders is essential for capturing a critical condition for information to aggregate: as the numbers of winning and(More)
Michael H. Rothkopf (May 20, 1939–February 18, 2008), past President of INFORMS and editor of Interfaces, had an influential career dedicated to the concern that research should be relevant to practice. His wide-ranging contributions to operations research included scheduling theory, queuing theory, and energy economics and policy. However, his principal(More)
The opinions expressed in this paper do not necessarily reflect the position of Summary We study sequential and single-round uniform-price auctions with affiliated values. We derive symmetric equilibrium for the auction in which k1 objects are sold in the first round and k2 in the second round, with and without revelation of the first-round winning bids. We(More)
We study sequential and single-round uniform-price auctions with a¢ liated values. We derive symmetric equilibrium for the auction in which k1 objects are sold in the …rst round and k2 in the second round, with and without revelation of the …rst-round winning bids. We demonstrate that auctioning objects in sequence generates a lowballing e¤ect that reduces(More)
We consider the problem of finding an optimal schedule for jobs on a single machine when there are penalties for both tardy and early arrivals. We point out that if attention is paid to how these penalties are measured, then a change of scale of measurement might lead to the anomalous situation where a schedule is optimal if these parameters are measured in(More)
In addition to the historic events surrounding the Florida vote, the outcome of the 2000 US Presidential Election has sparked a widespread discussion of the current electoral system. This discussion is not likely to fade away with a final resolution of the election outcome. The first part of this note points to some problems surrounding the voting(More)
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