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Welfare-Enhancing Collusion in the Presence of a Competitive Fringe

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Author Info
Juan Pablo Montero () (Instituto de Economía. Pontificia Universidad Católica de Chile.)
Juan Ignacio Guzmán

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Abstract

Following the structure of many commodity markets, we consider a few large firms and a competitive fringe of many small suppliers choosing quantities in an infinite-horizon setting subject to demand shocks. We show that a collusive agreement among the large firms may not only bring an output contraction but also an output expansion (relative to the noncollusive output level). The latter occurs during booms, when the fringe’s market share is more important, and is due to the strategic substitutability of quantities (we will never observe an output-expanding collusion in a price-setting game). In addition and depending on the fringe’s market share the time at which maximal collusion is most difficult to sustain can be either at booms or recessions.

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Paper provided by Instituto de Economía. Pontificia Universidad Católica de Chile. in its series Documentos de Trabajo with number 298.

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Date of creation: 2005
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Handle: RePEc:ioe:doctra:298

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  3. Abreu, Dilip, 1988. "On the Theory of Infinitely Repeated Games with Discounting," Econometrica, Econometric Society, vol. 56(2), pages 383-96, March. [Downloadable!] (restricted)
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  9. Kyle Bagwell & Robert Staiger, 1997. "Collusion Over the Business Cycle," RAND Journal of Economics, The RAND Corporation, vol. 28(1), pages 82-106, Spring. [Downloadable!] (restricted)
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  10. Fudenberg, Drew & Levine, David K, 1989. "Reputation and Equilibrium Selection in Games with a Patient Player," Econometrica, Econometric Society, vol. 57(4), pages 759-78, July. [Downloadable!] (restricted)
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  11. Riordan, Michael H, 1998. "Anticompetitive Vertical Integration by a Dominant Firm," American Economic Review, American Economic Association, vol. 88(5), pages 1232-48, December. [Downloadable!] (restricted)
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  12. John Haltiwanger & Joseph E. Harrington Jr., 1991. "The Impact of Cyclical Demand Movements on Collusive Behavior," RAND Journal of Economics, The RAND Corporation, vol. 22(1), pages 89-106, Spring. [Downloadable!] (restricted)
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  15. Crowson, Phillip, 2003. "Mine size and the structure of costs," Resources Policy, Elsevier, vol. 29(1-2), pages 15-36. [Downloadable!] (restricted)
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  18. Fudenberg, Drew & Tirole, Jean, 1984. "The Fat-Cat Effect, the Puppy-Dog Ploy, and the Lean and Hungry Look," American Economic Review, American Economic Association, vol. 74(2), pages 361-66, May. [Downloadable!] (restricted)
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