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Interactions Across Firms and Bid Rigging
Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet, Nationalekonomi.ORCID-id: 0000-0002-7905-1825
Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet, Nationalekonomi.ORCID-id: 0000-0001-6094-9099
2019 (engelsk)Inngår i: Review of Industrial Organization, ISSN 0889-938X, E-ISSN 1573-7160Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

We evaluate whether an econometric technique that is used in the spatial econometrics and network effects literature can be adopted as a test for collusive bidding in public procurement auctions. The proposed method is applied to the Swedish asphalt cartel that was discovered in 2001. Our dataset covers the period 1995–2009, which makes it possible to test for conditional independence between complementary cartel bids before and after 2001. Our estimates show a significant positive correlation between complementary cartel bids during the cartel period, whereas a non-significant correlation is shown during the later period. The variance of the parameter estimate of interest also differs between the periods, which suggests a structural change in bidding behavior among cartel members between the two periods.

sted, utgiver, år, opplag, sider
Springer, 2019.
Emneord [en]
Antitrust, Auction, Cartel and collusion, Complementary bidding, Public procurement, Networks, Spatial econometrics
HSV kategori
Forskningsprogram
nationalekonomi
Identifikatorer
URN: urn:nbn:se:umu:diva-154921DOI: 10.1007/s11151-018-09676-0OAI: oai:DiVA.org:umu-154921DiVA, id: diva2:1275356
Forskningsfinansiär
Swedish Competition AuthorityTilgjengelig fra: 2019-01-05 Laget: 2019-01-05 Sist oppdatert: 2019-04-05

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Lundberg, JohanLundberg, Sofia

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