Convexity of Bertrand oligopoly TU-games with differentiated products

Aymeric Lardon

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Abstract: We consider Bertrand oligopoly TU-games with differentiated products. We assume that the demand system is Shubik's and that firms operate at a constant and identical marginal and average cost. Our main results state that Bertrand oligopoly TU-games in alpha, beta and gamma-characteristic function form satisfy the convexity property, meaning that there exist strong incentives for large-scale cooperation between firms on prices.

Keywords: Bertrand competition; Cooperation; Core; Convexity (search for similar items in EconPapers)
Date: 2018
Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-00544056v2
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Citations: View citations in EconPapers (8)

Published in 2018

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Journal Article: Convexity of Bertrand oligopoly TU-games with differentiated products (2020)
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