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Pablo Ballesteros-Perez
Pablo
Ballesteros-Perez
M. Carmen Gonzalez-Cruz
M. Carmen
Gonzalez-Cruz
Antonio Canavate-Grimal
Antonio
Canavate-Grimal
Eugenio Pellicer
Eugenio
Pellicer
Detecting abnormal and collusive bids in capped tendering
Loughborough University
2018
Tender
Auction
Collusion
Abnormal bid
Phony bid
Bid-covering
Built Environment and Design not elsewhere classified
2018-05-01 07:47:18
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/Detecting_abnormal_and_collusive_bids_in_capped_tendering/9448139
Recent developments in the area of Bid Tender Forecasting have enabled bidders to implement new types of easy-to-use tools for increasing their chances of winning contracts. Although these new tools (such as iso-Score Curve Graphs, Scoring Probability Graphs, and Position Probability Graphs) are designed for bidders in capped tendering (tenders with an upper price limit), some of their principles can also be applied by a Contracting Authority to detect which bidders do not follow a standard pattern, that is, their bids are extremely high or low. Since a collusive bid generally needs to be sufficiently high or low to make an impact on the bid distribution, any person in charge of supervising capped tenders can be alerted to any bidder that might be involved in a cartel after identifying the same abnormal behavior in a series of tenders through simple calculations and a new type of graph. © 2012 Elsevier B.V.