Consider a Bertrand duopoly with homogeneous products and market demand function Q(p): = a-p. Suppose marginal costs are c₁ for firm 1 and c₂ for firm 2 with c₁ < C₂ < a and c₂ < ta Suppose that, if both firms charge the same price, all consumers buy from firm 1. Derive the entire set of pure strategy Nash equilibria, justifying your conclusions as explicitly as you can.

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter15: Imperfect Competition
Section: Chapter Questions
Problem 15.5P
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Consider a Bertrand duopoly with homogeneous products and market demand function Q(p) =
a – p. Suppose marginal costs are c1 for firm 1 and c2 for firm 2 with c1 < c2 < a and c2 < ta.
Suppose that, if both firms charge the same price, all consumers buy from firm 1. Derive the
entire set of pure strategy Nash equilibria, justifying your conclusions as explicitly as you can.
Transcribed Image Text:Consider a Bertrand duopoly with homogeneous products and market demand function Q(p) = a – p. Suppose marginal costs are c1 for firm 1 and c2 for firm 2 with c1 < c2 < a and c2 < ta. Suppose that, if both firms charge the same price, all consumers buy from firm 1. Derive the entire set of pure strategy Nash equilibria, justifying your conclusions as explicitly as you can.
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