Cornell University

This is a past event. Its details are archived for historical purposes.

The contact information may no longer be valid.

Please visit our current events listings to look for similar events by title, location, or venue.

VIRTUAL-Joint Econometrics Workshop and Industrial Organization Workshop: Robert Clark

Tuesday, March 29, 2022 at 11:15am to 12:45pm

Virtual Event

Robert Clark, Queen's University, Ontario-Canada

Hub-and-spoke cartels: Theory and evidence from the grocery industry.

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.

No paper available.

Dial-In Information

If you are interested participating in this seminar, please email Ulrike Kroeller at for Zoom information.

Google Calendar iCal Outlook
Event Type

Seminar, Class/ Workshop




economics, EconSeminar, EconMetrics, EconIO

Contact E-Mail

Contact Name

Ulrike Kroeller

Contact Phone



Robert Clark

Speaker Affiliation

Queen's University-Canada

Open To

Cornell Economics Commnity (List Service Mambers)