Publications [#340711] of Leslie M. Marx

Journal Articles

1. Lopomo, G; Marshall, RC; Marx, LM, Inefficiency of Collusion at English Auctions, The B.E. Journal of Theoretical Economics, vol. 5 no. 1 (June, 2005), pp. 1-28
   (last updated on 2026/01/14)

   Abstract:
   In its attempts to deter and prosecute big rigging, U.S. antitrust authorities have focused on sealed-bid procurements, rather than on ascending-bid auctions. One possible justification for this focus is the idea, supported by the existing theoretical literature, that collusion creates inefficiency at sealed-bid auctions, but not at ascending-bid auctions. We show when there is no pre-auction communication and the collusive mechanism satisfies ex-post budget balance, collusion does affect efficiency. In particular, any collusive mechanism that increases cartel members' expected payoffs relative to non-cooperative play results in inefficiency either in the allocation among cartel members or in the allocation between cartel and non-cartel bidders, or both.