Erie doctrine
E354850
The Erie doctrine is a fundamental U.S. legal principle requiring federal courts in diversity jurisdiction cases to apply state substantive law instead of creating or using federal general common law.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Erie doctrine canonical | 8 |
| Erie doctrine is fundamentally sound | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3392333 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Erie doctrine Context triple: [Rules Enabling Act, relatedTo, Erie doctrine]
-
A.
Noerr-Pennington doctrine
The Noerr-Pennington doctrine is a U.S. legal principle that shields individuals and entities from antitrust liability when they petition the government, even if their efforts have anticompetitive effects.
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B.
Hallstein Doctrine
The Hallstein Doctrine was a Cold War-era West German foreign policy that refused diplomatic relations with any country (except the USSR) that recognized East Germany as a sovereign state.
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C.
Sanctuary doctrine
The Sanctuary doctrine is a distinctive Seventh-day Adventist teaching that interprets Christ’s ongoing heavenly ministry and the investigative judgment through the symbolism of the Old Testament sanctuary services.
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D.
insular cases doctrine
The insular cases doctrine is a body of early 20th-century U.S. Supreme Court decisions holding that full constitutional rights do not automatically extend to all territories under American control, creating a distinction between incorporated and unincorporated territories.
-
E.
Ex parte Young
Ex parte Young is a landmark 1908 U.S. Supreme Court decision that created a legal fiction allowing suits in federal court against state officials to stop ongoing violations of federal law, despite state sovereign immunity under the Eleventh Amendment.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Erie doctrine Target entity description: The Erie doctrine is a fundamental U.S. legal principle requiring federal courts in diversity jurisdiction cases to apply state substantive law instead of creating or using federal general common law.
-
A.
Noerr-Pennington doctrine
The Noerr-Pennington doctrine is a U.S. legal principle that shields individuals and entities from antitrust liability when they petition the government, even if their efforts have anticompetitive effects.
-
B.
Hallstein Doctrine
The Hallstein Doctrine was a Cold War-era West German foreign policy that refused diplomatic relations with any country (except the USSR) that recognized East Germany as a sovereign state.
-
C.
Sanctuary doctrine
The Sanctuary doctrine is a distinctive Seventh-day Adventist teaching that interprets Christ’s ongoing heavenly ministry and the investigative judgment through the symbolism of the Old Testament sanctuary services.
-
D.
insular cases doctrine
The insular cases doctrine is a body of early 20th-century U.S. Supreme Court decisions holding that full constitutional rights do not automatically extend to all territories under American control, creating a distinction between incorporated and unincorporated territories.
-
E.
Ex parte Young
Ex parte Young is a landmark 1908 U.S. Supreme Court decision that created a legal fiction allowing suits in federal court against state officials to stop ongoing violations of federal law, despite state sovereign immunity under the Eleventh Amendment.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States federal courts doctrine
ⓘ
legal doctrine ⓘ |
| addresses | vertical choice of law ⓘ |
| affects | litigation strategy in federal diversity cases ⓘ |
| aimsToPrevent | different outcomes in state and federal court based solely on forum ⓘ |
| announcedInYear | 1938 ⓘ |
| appliesInJurisdiction |
United States
ⓘ
linked to:
United States of America
|
| appliesTo |
diversity jurisdiction cases
ⓘ
federal question cases with supplemental state-law claims ⓘ state-created rights and obligations ⓘ |
| appliesWhen | federal court sits in diversity ⓘ |
| basedOnCase | Erie Railroad Co. v. Tompkins ⓘ |
| clarifiedByCase |
Byrd v. Blue Ridge Rural Electric Cooperative, Inc.
ⓘ
Gasperini v. Center for Humanities, Inc. ⓘ Guaranty Trust Co. v. York ⓘ Hanna v. Plumer ⓘ Shady Grove Orthopedic Associates, P.A. v. Allstate Insurance Co. ⓘ |
| considered | fundamental principle of U.S. civil procedure ⓘ |
| coreConcept | no federal general common law in diversity cases ⓘ |
| courtAnnouncingDoctrine | Supreme Court of the United States ⓘ |
| distinguishesBetween | substantive law and procedural law ⓘ |
| doesNotRequireApplicationOf | state procedural rules when valid federal rule on point exists ⓘ |
| fieldOfLaw |
civil procedure
ⓘ
federal courts law ⓘ |
| governs | choice between state and federal law in federal courts ⓘ |
| hasComponentTest |
balancing of state and federal interests
ⓘ
outcome-determinative test ⓘ twin aims of Erie ⓘ |
| holdsThat |
federal courts may apply federal procedural law if valid under the Rules Enabling Act
ⓘ
federal courts must apply state substantive law in diversity cases ⓘ |
| influencedBy |
constitutional considerations
ⓘ
federalism principles ⓘ |
| influences | interpretation of Federal Rules of Civil Procedure ⓘ |
| interpretsStatute | Rules Enabling Act ⓘ |
| legalSystem |
United States legal system
ⓘ
linked to:
United States law
|
| limits | federal general common law ⓘ |
| overruledPrecedent | Swift v. Tyson ⓘ |
| reasoningIncludes |
concern about forum shopping
ⓘ
concern about inequitable administration of the laws ⓘ |
| rejects | federal general common law ⓘ |
| relatedConcept | Klaxon rule ⓘ |
| relatedTo | Rules of Decision Act ⓘ |
| requiresApplicationOf |
state choice-of-law rules in diversity cases
ⓘ
state substantive law ⓘ |
| taughtIn | U.S. law schools ⓘ |
| twinAims |
avoiding inequitable administration of the laws
ⓘ
discouraging forum shopping ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Erie doctrine Description of subject: The Erie doctrine is a fundamental U.S. legal principle requiring federal courts in diversity jurisdiction cases to apply state substantive law instead of creating or using federal general common law.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
“In Praise of Erie—and of the New Federal Common Law”
subject linked to:
“In Praise of Erie—and of the New Federal Common Law”
In Praise of Erie—and of the New Federal Common Law
→
argues
→
Erie doctrine is fundamentally sound
ⓘ
subject linked to:
“In Praise of Erie—and of the New Federal Common Law”
linked to: Erie doctrine