Simulating mergers in a vertical supply chain with bargaining

Gloria Sheu and Charles Taragin

RAND Journal of Economics, 2021, vol. 52, issue 3, 596-632

Abstract: We model a two‐level supply chain where Nash bargaining occurs upstream and firms compete in a logit setting downstream, either via Bertrand price setting or an auction. The parameters can be calibrated with a discrete set of data on prices, margins, and market shares, facilitating use by antitrust practitioners. We perform numerical simulations to identify cases where modelling the full vertical structure is important and where harm is likely. We also examine the thwarted Anthem/Cigna merger and show how the model weighs the various arguments made by the government and the defendants.

Date: 2021
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Citations: View citations in EconPapers (8)

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https://doi.org/10.1111/1756-2171.12385

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Working Paper: Simulating Mergers in a Vertical Supply Chain with Bargaining (2017)
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