Abstracts – Browse Results

Search or browse again.

Click on the titles below to expand the information about each abstract.
Viewing 5 results ...

Adams, J D and Brown, A W (2002) Project management in public sector construction projects: assessing value for money. Journal of Construction Procurement, 8(02), 84–100.

Al-Tabtabai, H (2002) Construction procurement strategy selection using analytical hierarchy process. Journal of Construction Procurement, 8(02), 117–32.

Ekström, M A and Bjornsson, H C (2002) Trust building tools supporting electronic bidding in construction. Journal of Construction Procurement, 8(02), 133–47.

  • Type: Journal Article
  • Keywords: rating system; e-commerce; bidding; source credibility; trust
  • ISBN/ISSN: 1358-9180
  • URL:
  • Abstract:
    A rating system can substantially improve the effectiveness of an Architectural Engineering Construction (AEC) e-commerce market by providing a means for market participants to share information about performance. If users are to trust a rating system, one critical issue is the ability to filter out inaccurate and/or dishonest ratings. Therefore it is important to weight the ratings according to who is the rater. Source credibility theory from the area of communication science offers a solution to this problem, providing a means for users to explicitly rate the reliability of a given rater. This paper proposes a model for calculating ratings of AEC subcontractors based on the user's assessment of rater credibility. An experiment was carried out to compare a credibility-weighted rating system prototype to a standard unweighted model in the context of evaluating bids from subcontractors. The experiment showed that the credibility-weighted model fared better both in terms of the extent to which users varied the contingency added to the bids and in terms of their perceived confidence in their valuations. The results of the experiment also indicated that bidding decisions were influenced not only by the overall ratings but also by rater agreement and the total credibility of all raters that had rated a subcontractor. This paper concludes that source credibility is a promising basis for a rating system in AEC.

Kashiwagi, D T and Byfield, R (2002) Project MA Case study of potential impact of subjective decision making on construction performance. Journal of Construction Procurement, 8(02), 101–16.

Rashid, K B A (2002) An assessment on the systems of registration of contracting firms in Malaysia. Journal of Construction Procurement, 8(02), 148–59.