October Term 2008 · Docket 07-512

Does a margin-based price squeeze prove antitrust liability?

Pacific Bell seeks reversal of a Ninth Circuit judgment. LinkLine seeks vacatur and remand. The dispute centers on antitrust liability standards.

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Pacific Bell Telephone Co. v. linkLine Communications, Inc.
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Verified source milestones

  1. — An official oral-argument transcript was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Aaron Panner argued for Pacific Bell. He cited Trinko and Brooke. He urged reversal of the Ninth Circuit decision.

    Ms. Maynard argued for LinkLine. She warned of two possible outcomes. She emphasized the margin-based price squeeze theory.

    Justice Souter questioned the duty to deal. He asked about regulatory participation. He distinguished this case from future cases.

    Justice Breyer asked about regulation. He referenced Judge Hand's opinion. He explored the absence of regulation.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

Pacific Bell Telephone Company and LinkLine Communications dispute antitrust liability. Pacific Bell argues the lower court erred. LinkLine argues the lower court acted correctly. The Court must resolve the legal standard.

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How the case got here

The Supreme Court heard oral argument in this case on December 8, 2008.

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What each side wants

Pacific Bell wants the Supreme Court to reverse the Ninth Circuit decision.

LinkLine wants the Supreme Court to vacate the decision and remand the case.

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What each side says

Pacific Bell argues unilateral pricing decisions do not create antitrust liability.

LinkLine argues a margin-based price squeeze supports an antitrust claim.

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What the justices asked

Justice Souter asked if a duty to deal supports a price squeeze theory.

Justice Breyer asked if regulation is required for a price squeeze claim.

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Why it matters

The outcome defines antitrust liability for vertically integrated firms. It clarifies the legal standard for price squeeze claims. It impacts competition in telecommunications markets.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Title and summary sources

Revision history

  1. Revision 1 · Official Transcript ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Official Transcript ·

    Correction: Migrated to the dated official Court activity contract without model use.

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