This paper examines bidding in auctions for state highway construction contracts on Long Island in the early 1980s, in … order to determine whether bid rigging occurred. Detection of collusion is possible because of limited participation in the … collusive scheme. The paper looks at differences in behavior between ring members and non-members. In these auctions, collusio …

marketing agencies specialized in bidding in the auctions that are used to sell ad space on the web. We analyze how collusive … mechanism (used by Facebook). We find that, despite its well-known susceptibility to collusion, the VCG mechanism outperforms …

-linear demand curves with quantities as flows (shares/second). Batch auctions clear all asset markets jointly in discrete time …

We study the extent to which collusion can explain the under-provision of clean sanitation technologies in developing … the extent of competition. Consistent with the collusion hypothesis, we find that most bidders systematically avoid …

We apply a Regression Discontinuity based approach to screen for collusion developed in Kawai et al. (2022) to public … those who lose by a very small margin in the sample of procurement auctions from Indonesia, suggesting that bidders collude … by bid rotation. Our results suggest that the proportion of noncompetitive auctions is at least about 5% for all E …