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The Over-Deterrence Risks of the Refusals to Deal and Price Squeeze Tests and the Options of Vertically Integrated Monopoly

Wen‐Jen Tsay

Antitrust Bulletin2025https://doi.org/10.1177/0003603x251346505article
ABDC B
Weight
0.50

Abstract

When a vertically integrated monopolist (VIM) is the only supplier of an input used by firms in a downstream market and competes with its rival in this downstream market, the VIM has to decide its downstream product price and its input price when the upstream market is not regulated. Since the rival must buy the input from the VIM in order to produce and sell its product, the pricing decisions of the VIM might raise the concern of refusals to deal or price squeeze. I fill the gap of the literature by showing that both the as-efficient competitor (AEC) and the protected profits benchmark (PPB) could suffer from over-deterrence risks when both markets are unregulated.

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https://doi.org/https://doi.org/10.1177/0003603x251346505

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@article{wen‐jen2025,
  title        = {{The Over-Deterrence Risks of the Refusals to Deal and Price Squeeze Tests and the Options of Vertically Integrated Monopoly}},
  author       = {Wen‐Jen Tsay},
  journal      = {Antitrust Bulletin},
  year         = {2025},
  doi          = {https://doi.org/https://doi.org/10.1177/0003603x251346505},
}

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The Over-Deterrence Risks of the Refusals to Deal and Price Squeeze Tests and the Options of Vertically Integrated Monopoly

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

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