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Motivated by the increasing use of auctions by government agencies, we consider the problem of fairly pricing public goods in a combinatorial auction. A well-known problem with the incentive-compatible Vickrey-Clarke-Groves (VCG) auction mechanism is that the resulting prices may not be in the core. Loosely speaking, this means the payments of the winners(More)
We report on the use of a quadratic programming technique in recent and upcoming spectrum auctions in Europe. Specifically , we compute a unique point in the core that minimizes the sum of squared deviations from a reference point, for example, from the Vickrey-Clarke-Groves payments. Analyzing the Karush-Kuhn-Tucker conditions, we demonstrate that the(More)
A combinatorial auction is one in which preferences are expressed for combinations or bundles of items, rather than just for individual items. The importance of combinatorial auctions has grown tremendously in the past 15 years, which have seen an explosion in the use of auction mechanisms in both government allocation problems and business-to-business(More)
This paper presents a method for discovering and detecting shill bids in combinatorial auctions. The Vickrey-Clarke-Groves Mechanism is one of the most important combinatorial auctions because it can satisfy the strategy-proof property, individual rationality, and Pareto efficiency, that is, it is the only mechanism that simultaneously satisfies these(More)
References A good review of many methods for both parametric and nonparametric multiple comparisons , planned and unplanned, and with some discussion of the philosophical as well as practical issues in their use, is: (1989) " Comparisons of treatments after an analysis of variance in ecology, " Ecological Monographs 59: 433-463. Also, the GLM chapter of the(More)
Verification Sampling for Soil Standards, the SI data collected should be adequate to conclude that no Environmental Protection Field Sampling Procedure Manual 2005 (FSPM)). Use test pits to obtain a greater cross-section view of the subsurface than the information about soil classification. standards reflect the state of the art of laboratory practices for(More)