IDEAS home Printed from https://ideas.repec.org/p/nbr/nberwo/29253.html
   My bibliography  Save this paper

Hub and Spoke Cartels: Theory and Evidence from the Grocery Industry

Author

Listed:
  • Robert Clark
  • Ignatius Horstmann
  • Jean-François Houde

Abstract

Numerous recently uncovered cartels operated along the supply chain, with firms at one end facilitating collusion at the other – hub-and-spoke arrangements. These cartels are hard to rationalize because they induce double marginalization and higher costs. We examine Canada’s alleged bread cartel and provide the first comprehensive analysis of hub-and-spoke collusion. We make three contributions: i) Using court documents and pricing data we provide evidence that collusion existed at both ends of the supply chain, ii) we show that collusion was effective, increasing inflation by about 40% and iii) we provide a model explaining why this form of collusion arose.

Suggested Citation

  • Robert Clark & Ignatius Horstmann & Jean-François Houde, 2021. "Hub and Spoke Cartels: Theory and Evidence from the Grocery Industry," NBER Working Papers 29253, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:29253
    Note: IO
    as

    Download full text from publisher

    File URL: http://www.nber.org/papers/w29253.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Michaela Draganska & Daniel Klapper & Sofia B. Villas-Boas, 2010. "A Larger Slice or a Larger Pie? An Empirical Investigation of Bargaining Power in the Distribution Channel," Marketing Science, INFORMS, vol. 29(1), pages 57-74, 01-02.
    2. John Asker & Heski Bar-Isaac, 2020. "Vertical Information Restraints: Pro- and Anticompetitive Impacts of Minimum-Advertised-Price Restrictions," Journal of Law and Economics, University of Chicago Press, vol. 63(1), pages 111-148.
    3. Daniel Chaves & Marco Duarte, 2021. "The Inner Workings of a Hub-and-Spoke Caretl in the Automotive Fuel Industry," University of Western Ontario, Departmental Research Report Series 20216, University of Western Ontario, Department of Economics.
    4. Robert Clark & Jean-François Houde, 2014. "The Effect of Explicit Communication on pricing: Evidence from the Collapse of a Gasoline Cartel," Journal of Industrial Economics, Wiley Blackwell, vol. 62(2), pages 191-228, June.
    5. Block, Michael Kent & Nold, Frederick Carl, 1981. "The Deterrent Effect of Antitrust Enforcement," Journal of Political Economy, University of Chicago Press, vol. 89(3), pages 429-445, June.
    6. Lars-Hendrik Röller & Frode Steen, 2006. "On the Workings of a Cartel: Evidence from the Norwegian Cement Industry," American Economic Review, American Economic Association, vol. 96(1), pages 321-338, March.
    7. Carsten J. Crede, 2019. "A Structural Break Cartel Screen for Dating and Detecting Collusion," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 54(3), pages 543-574, May.
    8. David Genesove & Wallace P. Mullin, 2001. "Rules, Communication, and Collusion: Narrative Evidence from the Sugar Institute Case," American Economic Review, American Economic Association, vol. 91(3), pages 379-398, June.
    9. Carlos Noton & Andrés Elberg, 2018. "Are Supermarkets Squeezing Small Suppliers? Evidence from Negotiated Wholesale Prices," Economic Journal, Royal Economic Society, vol. 128(610), pages 1304-1330, May.
    10. Rotemberg, Julio J & Saloner, Garth, 1986. "A Supergame-Theoretic Model of Price Wars during Booms," American Economic Review, American Economic Association, vol. 76(3), pages 390-407, June.
    11. Céline Bonnet & Pierre Dubois, 2010. "Inference on vertical contracts between manufacturers and retailers allowing for nonlinear pricing and resale price maintenance," RAND Journal of Economics, RAND Corporation, vol. 41(1), pages 139-164, March.
    12. Paul B. Ellickson & Sanjog Misra, 2008. "Supermarket Pricing Strategies," Marketing Science, INFORMS, vol. 27(5), pages 811-828, 09-10.
    13. Robert H. Porter & J. Douglas Zona, 1999. "Ohio School Milk Markets: An Analysis of Bidding," RAND Journal of Economics, The RAND Corporation, vol. 30(2), pages 263-288, Summer.
    14. Normann, Hans-Theo, 2009. "Vertical integration, raising rivals' costs and upstream collusion," European Economic Review, Elsevier, vol. 53(4), pages 461-480, May.
    15. Sahuguet, Nicolas & Walckiers, Alexis, 2017. "A theory of hub-and-spoke collusion," International Journal of Industrial Organization, Elsevier, vol. 53(C), pages 353-370.
    16. Sofia Berto Villas-Boas, 2007. "Vertical Relationships between Manufacturers and Retailers: Inference with Limited Data," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 74(2), pages 625-652.
    17. Volker Nocke & Lucy White, 2007. "Do Vertical Mergers Facilitate Upstream Collusion?," American Economic Review, American Economic Association, vol. 97(4), pages 1321-1339, September.
    18. Marhsall, Robert C. & Marx, Leslie M., 2014. "The Economics of Collusion: Cartels and Bidding Rings," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262525941, April.
    19. David P. Byrne & Nicolas de Roos, 2019. "Learning to Coordinate: A Study in Retail Gasoline," American Economic Review, American Economic Association, vol. 109(2), pages 591-619, February.
    20. Frank Mathewson & Ralph Winter, 1998. "The Law and Economics of Resale Price Maintenance," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 13(1), pages 57-84, April.
    21. Salvatore Piccolo & Jeanine Miklós-Thal, 2012. "Colluding through suppliers," RAND Journal of Economics, RAND Corporation, vol. 43(3), pages 492-513, September.
    22. Greg Shaffer, 1991. "Slotting Allowances and Resale Price Maintenance: A Comparison of Facilitating Practices," RAND Journal of Economics, The RAND Corporation, vol. 22(1), pages 120-135, Spring.
    23. Aryal, Gaurab & Gabrielli, Maria F., 2013. "Testing for collusion in asymmetric first-price auctions," International Journal of Industrial Organization, Elsevier, vol. 31(1), pages 26-35.
    24. Patrick Bajari & Lixin Ye, 2003. "Deciding Between Competition and Collusion," The Review of Economics and Statistics, MIT Press, vol. 85(4), pages 971-989, November.
    25. Kei Kawai & Jun Nakabayashi, 2022. "Detecting Large-Scale Collusion in Procurement Auctions," Journal of Political Economy, University of Chicago Press, vol. 130(5), pages 1364-1411.
    26. Helder Vasconcelos, 2005. "Tacit Collusion, Cost Asymmetries, and Mergers," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 39-62, Spring.
    27. Jacquemin, Alexis & Slade, Margaret E., 1989. "Cartels, collusion, and horizontal merger," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 7, pages 415-473, Elsevier.
    28. Timothy G. Conley & Francesco Decarolis, 2016. "Detecting Bidders Groups in Collusive Auctions," American Economic Journal: Microeconomics, American Economic Association, vol. 8(2), pages 1-38, May.
    29. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 1, number 1.
    30. Patrick Rey & Thibaud Vergé, 2010. "Resale Price Maintenance And Interlocking Relationships," Journal of Industrial Economics, Wiley Blackwell, vol. 58(4), pages 928-961, December.
    31. Paul B. Ellickson, 2007. "Does Sutton apply to supermarkets?," RAND Journal of Economics, RAND Corporation, vol. 38(1), pages 43-59, March.
    32. Robert Clark & Jean-Fran?ois Houde, 2013. "Collusion with Asymmetric Retailers: Evidence from a Gasoline Price-Fixing Case," American Economic Journal: Microeconomics, American Economic Association, vol. 5(3), pages 97-123, August.
    33. K. Sudhir & Vrinda Kadiyali & Vithala R. Rao, 2001. "Structural Analysis of Manufacturer Pricing in the Presence of a Strategic Retailer," Yale School of Management Working Papers ysm229, Yale School of Management.
    34. Vives, Xavier, 1984. "Duopoly information equilibrium: Cournot and bertrand," Journal of Economic Theory, Elsevier, vol. 34(1), pages 71-94, October.
    35. Nathan H. Miller & Matthew C. Weinberg, 2017. "Understanding the Price Effects of the MillerCoors Joint Venture," Econometrica, Econometric Society, vol. 85(6), pages 1763-1791, November.
    36. Thomas W. Ross, 2004. "Viewpoint: Canadian competition policy: progress and prospects," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 37(2), pages 243-268, May.
    37. John Asker, 2010. "A Study of the Internal Organization of a Bidding Cartel," American Economic Review, American Economic Association, vol. 100(3), pages 724-762, June.
    38. Howard Smith, 2004. "Supermarket Choice and Supermarket Competition in Market Equilibrium," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 71(1), pages 235-263.
    39. Andrews, Donald W K, 1993. "Tests for Parameter Instability and Structural Change with Unknown Change Point," Econometrica, Econometric Society, vol. 61(4), pages 821-856, July.
    40. Martin Pesendorfer, 2000. "A Study of Collusion in First-Price Auctions," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 67(3), pages 381-411.
    41. Stefano DellaVigna & Matthew Gentzkow, 2019. "Uniform Pricing in U.S. Retail Chains," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 134(4), pages 2011-2084.
    42. Benjamin Klein & Joshua D. Wright, 2007. "The Economics of Slotting Contracts," Journal of Law and Economics, University of Chicago Press, vol. 50(3), pages 421-454.
    43. Bruno Jullien & Patrick Rey, 2007. "Resale price maintenance and collusion," RAND Journal of Economics, RAND Corporation, vol. 38(4), pages 983-1001, December.
    44. Leslie M. Marx & Greg Shaffer, 2010. "Slotting Allowances and Scarce Shelf Space," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 19(3), pages 575-603, September.
    45. Alison J. Kirby, 1988. "Trade Associations as Information Exchange Mechanisms," RAND Journal of Economics, The RAND Corporation, vol. 19(1), pages 138-146, Spring.
    46. K. Sudhir, 2001. "Structural Analysis of Manufacturer Pricing in the Presence of a Strategic Retailer," Marketing Science, INFORMS, vol. 20(3), pages 244-264, October.
    47. Greif, Avner & Milgrom, Paul & Weingast, Barry R, 1994. "Coordination, Commitment, and Enforcement: The Case of the Merchant Guild," Journal of Political Economy, University of Chicago Press, vol. 102(4), pages 745-776, August.
    48. R. Schmalensee & R. Willig (ed.), 1989. "Handbook of Industrial Organization," Handbook of Industrial Organization, Elsevier, edition 1, volume 2, number 2.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Holler, Emanuel & Rickert, Dennis, 2022. "How resale price maintenance and loss leading affect upstream cartel stability: Anatomy of a coffee cartel," International Journal of Industrial Organization, Elsevier, vol. 85(C).
    2. Gaurab Aryal & Dennis J. Campbell & Federico Ciliberto & Ekaterina A. Khmelnitskaya, 2023. "Common Subcontracting and Airline Prices," Papers 2301.05999, arXiv.org, revised Dec 2023.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Clark, Robert & Coviello, Decio & de Leverano, Adriano, 2020. "Complementary bidding and the collusive arrangement: Evidence from an antitrust investigation," ZEW Discussion Papers 20-052, ZEW - Leibniz Centre for European Economic Research.
    2. Porter, Robert H., 2020. "Mergers and coordinated effects," International Journal of Industrial Organization, Elsevier, vol. 73(C).
    3. Robert Clark & Decio Coviello & Jean-Fran�ois Gauthier & Art Shneyerov, 2018. "Bid Rigging and Entry Deterrence in Public Procurement: Evidence from an Investigation into Collusion and Corruption in Quebec," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 34(3), pages 301-363.
    4. Granlund, David & Rudholm, Niklas, 2023. "Calculating the probability of collusion based on observed price patterns," Umeå Economic Studies 1014, Umeå University, Department of Economics, revised 13 Oct 2023.
    5. Sheldon, Ian M., 2017. "The Competitiveness Of Agricultural Product And Input Markets: A Review And Synthesis Of Recent Research," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 49(1), pages 1-44, February.
    6. Ari Hyytinen & Frode Steen & Otto Toivanen, 2018. "Cartels Uncovered," American Economic Journal: Microeconomics, American Economic Association, vol. 10(4), pages 190-222, November.
    7. Sahuguet, Nicolas & Walckiers, Alexis, 2017. "A theory of hub-and-spoke collusion," International Journal of Industrial Organization, Elsevier, vol. 53(C), pages 353-370.
    8. Hannes Wallimann & David Imhof & Martin Huber, 2023. "A Machine Learning Approach for Flagging Incomplete Bid-Rigging Cartels," Computational Economics, Springer;Society for Computational Economics, vol. 62(4), pages 1669-1720, December.
    9. Clark, Robert & Fabiilli, Christopher & Lasio, Laura, 2022. "Collusion in the US generic drug industry," International Journal of Industrial Organization, Elsevier, vol. 85(C).
    10. Belleflamme,Paul & Peitz,Martin, 2015. "Industrial Organization," Cambridge Books, Cambridge University Press, number 9781107687899, September.
    11. Joseph E. Harrington, Jr, 2005. "Detecting Cartels," Economics Working Paper Archive 526, The Johns Hopkins University,Department of Economics.
    12. Johannes Wachs & J'anos Kert'esz, 2019. "A network approach to cartel detection in public auction markets," Papers 1906.08667, arXiv.org.
    13. Sylvia Hristakeva, 2022. "Determinants of Channel Profitability: Retailers’ Control over Product Selections as Contracting Leverage," Marketing Science, INFORMS, vol. 41(2), pages 315-335, March.
    14. Sylvain Chassang & Kei Kawai & Jun Nakabayashi & Juan Ortner, 2019. "Data Driven Regulation: Theory and Application to Missing Bids," Boston University - Department of Economics - Working Papers Series WP2019-04, Boston University - Department of Economics.
    15. Stefan Buehler & Dennis L. Gärtner, 2013. "Making Sense of Nonbinding Retail-Price Recommendations," American Economic Review, American Economic Association, vol. 103(1), pages 335-359, February.
    16. Ari Hyytinen & Frode Steen & Otto Toivanen, 2019. "An Anatomy of Cartel Contracts," The Economic Journal, Royal Economic Society, vol. 129(621), pages 2155-2191.
    17. Carlos Noton & Andrés Elberg, 2013. "Revealing Bargaining Power through Actual Wholesale Prices," Documentos de Trabajo 304, Centro de Economía Aplicada, Universidad de Chile.
    18. Isabel Teichmann & Vanessa von Schlippenbach, 2014. "Collusive Effects of a Monopolist's Use of an Intermediary to Deliver to Retailers," Discussion Papers of DIW Berlin 1440, DIW Berlin, German Institute for Economic Research.
    19. Victor Aguirregabiria & Margaret Slade, 2017. "Empirical models of firms and industries," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 50(5), pages 1445-1488, December.
    20. Gabrielli, M. Florencia & Willington, Manuel, 2023. "Estimating damages from bidding rings in first-price auctions," Economic Modelling, Elsevier, vol. 126(C).

    More about this item

    JEL classification:

    • L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
    • L4 - Industrial Organization - - Antitrust Issues and Policies
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • L42 - Industrial Organization - - Antitrust Issues and Policies - - - Vertical Restraints; Resale Price Maintenance; Quantity Discounts

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:29253. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/nberrus.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.