Case study · CASE:economics-and-market-foundations/standard-oil-market-power-and-doctrine

Standard Oil: separate economic power, challenged conduct, doctrine, and remedy

Use the 1911 opinion to build parallel economic and legal claim maps without treating firm size or the word monopoly as the holding.

Updated Aug 7, 2026 Review due Nov 7, 2026
Decision brief

Your assignment

Role: Economic analyst supporting counsel with a source-bounded market and evidence memorandum

Deliverable: A two-column economic/legal claim map and a 900-word memorandum preserving facts, procedural posture, doctrine, remedy, and current-law boundary.

Evidence basis: public records

Visible standard

Evaluation criteria

  • primary source control (25%): Cites the opinion precisely and distinguishes historical record, reasoning, holding, and remedy.
  • economic evidence (30%): Defines the market question and organizes share, entry, conduct, duration, substitution, and direct evidence without a share-only verdict.
  • legal boundary (25%): Maps the Sherman Act claim and 1911 posture without presenting the opinion as current comprehensive doctrine.
  • communication (20%): States supported conclusions, inferences, unknowns, and next evidence in decision-ready language.

Assignment

The board asks whether the 1911 decision proves that “being a monopoly was illegal and breakup followed automatically.” Replace that sentence with a reviewable map.

Identify the court, claim, historical facts, challenged conduct, reasoning, holding, and remedy. On a separate economic track, identify market-boundary, substitution, share, entry, duration, conduct, and direct-evidence questions. Connect the tracks only where the source permits.

Do not convert modern terminology into a quotation from the opinion, treat every large share as unlawful, or use a historical holding as current advice.