Clark, Robert; Coviello, Decio; de Leverano, Adriano - 2020
A number of recent papers have proposed that a pattern of isolated winning bids may be associated with collusion. In … contrast, others have suggested that bid clustering, especially of the two lowest bids, is indicative of collusion. In this … bids in Montreal's asphalt industry before and after the investigation to patterns over the same time span in Quebec City …