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Bid-spread

Skitmore, Martin, Drew, Derek S., & Ngai, Stephen (2001) Bid-spread. Journal of Construction Engineering and Management, 127(2), pp. 149-153.

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Abstract

Analysis of the difference between the lowest and second lowest bids, or bid-spread, in a ‘lowest wins’ auction is of possible value in strategic bidding; providing an indication of mistakes in bids; determining a justifiable amount of bid security; and a means of providing some insight into the consequences of non-traditional auction arrangements. Bid-spread analysis, as developed in this paper, provides some explanations concerning the nature of bids and their statistical properties. In particular, it is shown here that, through the analysis of several datasets originating in various parts of the world, the percentage bid-spread is consistent with the assumption that bids are entirely random, being drawn from a lognormal distribution. The high values of the correlation coefficients, together with the failure of the two most popular correlates - contract size value and number of bidders – to account for any significant trends once the order statistic effects are removed provides overwhelming evidence in favor of the dominance of inherent variability in bidding.

Impact and interest:

17 citations in Scopus
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9 citations in Web of Science®

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632 since deposited on 16 May 2006
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ID Code: 4146
Item Type: Journal Article
Keywords: Bidding, tendering, bid, spread, spread, money left on the table, Vickrey Auctions, statistical models
DOI: 10.1061/(ASCE)0733-9364(2001)127:2(149)
ISSN: 0733-9364
Subjects: Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > BUILDING (120200) > Quantity Surveying (120203)
Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > BUILDING (120200) > Building Construction Management and Project Planning (120201)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2001 American Society of Civil Engineers
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 16 May 2006
Last Modified: 10 Aug 2011 23:55

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