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Rebates in a Bertrand Game

Rebates in a Bertrand Game
Author: Nora Szech and Philipp Weinschenk links:

Journal of Mathematical Economics, 2013, Vol. 49, Issue 2, 124-133 DOI:10.1016/j.jmateco.2012.12.004

Date: 2013

We study a price competition game in which customers are heterogeneous in the rebates they get from either of two firms. We characterize the transition between competitive pricing (without rebates), mixed strategy equilibrium (for intermediate rebates) and monopoly pricing (for larger rebates).

In the mixed equilibrium, a firm’s support consists of two parts: (i) aggressive prices that can steal away customers from the other firm; (ii) defensive prices that can only attract customers who get the re- bate. Both firms earn positive expected profits.

We show that counter-intuitively, for intermediate rebates, market segmentation decreases in rebates.