9.17. Number of competitors. Consider an n firm homogeneous-good oligopoly with constant marginal cost, the same for all firms. Let d ̄ be the minimum value of the dis- count factor such that it is possible to sustain monopoly prices in a collusive agreement. Show that d ̄ is decreasing in n. Interpret the result.

Principles of Microeconomics
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ISBN:9781305156050
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter17: Oligopoly
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9.17. Number of competitors. Consider an n firm homogeneous-good oligopoly with constant marginal cost, the same for all firms. Let d ̄ be the minimum value of the dis- count factor such that it is possible to sustain monopoly prices in a collusive agreement. Show that d ̄ is decreasing in n. Interpret the result.

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