Lochner v. New York, 198 U.S. 45 (1905)

Author: Peckham (majority) Outcome: Plaintiff wins ($d = 1$: state law invalidated under DP) Concurrences: None Dissents: Harlan, White, Day, Holmes


1. Holding ($H_t$)

"The statute necessarily interferes with the right of contract between the employer and employes, concerning the number of hours in which the latter may labor in the bakery of the employer. The general right to make a contract in relation to his business is part of the liberty of the individual protected by the Fourteenth Amendment of the Federal Constitution." (p. 53)

"There is no reasonable ground for interfering with the liberty of person or the right of free contract, by determining the hours of labor, in the occupation of a baker." (p. 57)

As constraint on admissible $(w, c)$: Rules out any decision rule under which state-imposed restrictions on the number of hours bakers can work are constitutional, absent a clear and direct relation to public health or safety. The weight on liberty of contract must be large enough to invalidate such restrictions unless they meet a stringent necessity test.

What the holding does NOT constrain:


2. Fact vector $z_t$

2a. Raw salient facts

2b. Dimension mapping

Dimension Value Raw fact(s) mapped Textual basis
D1 Liberty interest type Economic Liberty of contract "The general right to make a contract in relation to his business" (p. 53)
D2 Historical grounding High Liberty of contract; police power limits "The general right to make a contract... is part of the liberty... protected by the Fourteenth Amendment" (p. 53)
D3 Level of generality Narrow Baker's occupation not unhealthy "We think that there can be no fair doubt that the trade of a baker... is not an unhealthy one" (p. 59)
D4 Government interest strength Weak State's justification inadequate "There is, in our judgment, no reasonable foundation for holding this to be necessary or appropriate as a health law" (p. 62)
D5 Intrusion severity High Liberty of contract; lack of emergency clause "The statute necessarily interferes with the right of contract" (p. 53)
D6 Methodology Autonomy-based Liberty of contract; police power limits "The general right to make a contract... is part of the liberty... protected by the Fourteenth Amendment" (p. 53)
D7 Institutional setting Economic regulation Existing health regulations "These various sections may be wise and valid regulations" (p. 68)
D8 Precedent density High conflict Police power limits; state's justification inadequate "There is, in our judgment, no reasonable foundation for holding this to be necessary or appropriate as a health law" (p. 62)

Unmapped facts:

Notable: The Court emphasizes the autonomy-based methodology, focusing on the liberty of contract as a fundamental right protected by the Fourteenth Amendment, and sets a high bar for state interference under the guise of police power.


3. Treatment of prior holdings ($\mathcal{F}_t$ update)

Holden v. Hardy (1898)

Jacobson v. Massachusetts (1905)

Mugler v. Kansas (1887)


4. Overruling (constraint removal at cost $C$)

What is removed: The constraint that allowed state regulation of work hours in the baking industry under the guise of health regulation without clear evidence of necessity.

Justification (mapping to stare decisis factors):

Institutional cost: The decision signals a high threshold for state interference in economic liberties, potentially limiting future regulatory efforts.


5. Breadth

Narrow reading (what the Court explicitly holds):

Broad reading (what the reasoning supports):

Breadth ambiguity: The opinion leaves open the possibility of state regulation in other contexts with clearer health or safety justifications, creating ambiguity about the scope of permissible state action under the police power.


6. Concurrences / dissents (alternative admissible theories)

Harlan, White, and Day (dissenting)

Holmes (dissenting)


7. Reasoning revealing implicit weights on dimensions

Liberty of contract as a fundamental right (D1, D6 weight is high):

"The general right to make a contract in relation to his business is part of the liberty of the individual protected by the Fourteenth Amendment" (p. 53)

The Court places significant weight on the autonomy-based methodology, prioritizing individual economic liberties over state regulatory interests.

Skepticism of health justification (D4 weight is low):

"There is, in our judgment, no reasonable foundation for holding this to be necessary or appropriate as a health law" (p. 62)

The Court expresses skepticism about the state's health justification, indicating a low weight on the government's interest strength in this context.

Limits on police power (D8 weight is high):

"The mere assertion that the subject relates though but in a remote degree to the public health does not necessarily render the enactment valid" (p. 61)

The Court emphasizes the need for a direct and substantial relation to public health, reinforcing a high threshold for state action under the police power.