Tafflin v. Levitt’s Empirical Analysis
1990
Citation profile
278 federal appellate · 74 district · 242 state decisions
How this case has been cited
Cited by 1,000 later decisions (39 by the Supreme Court) — most recently May 2025 · most notably New York v. United States (1992), Gregory v. Ashcroft (1991)
278 federal appellate · 74 district · 242 state decisions — followed in 30 states
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Appellate journey
reviewedTafflin v. Levitt (from Fourth Circuit Court of Appeals)
Relationships
Applies 15 U.S.C. § 15 (§ 4 of the Clayton Antitrust Act of 1914) · 15 U.S.C. § 717U · 15 U.S.C. § 78A (§ 1 of the Securities Exchange Act of 1934) · 15 U.S.C. § 78C (§ 3 of the Securities Exchange Act of 1934) · 15 U.S.C. § 80A · 18 U.S.C. § 1961 (§ 901 of the Racketeer Influenced and Corrupt Organizations Act) · 18 U.S.C. § 1964 (§ 901 of the Racketeer Influenced and Corrupt Organizations Act) · 18 U.S.C. § 1965 (§ 901 of the Racketeer Influenced and Corrupt Organizations Act)
Relies on Sedima Sprl v. Imrex Company Inc · Cannon v. University of Chicago · Burford v. Sun Oil Co. · Hj Inc v. Northwestern Bell Telephone Company · Myers v. Bethlehem Shipbuilding Corp.
Cited together with Gulf Offshore Company v. Mobil Oil Corporation · Colorado River Water Conservation District v. United States · Yellow Freight System, Inc. v. Donnelly · Moses H. Cone Memorial Hospital v. Mercury Construction Corp. · Charles Dowd Box Co. v. Courtney
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 1,000 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“state courts have inherent authority, and are thus presumptively competent, to adjudicate claims arising under the laws of the United States.”
23 later decisions quote this exact passage · from the majority“[T]he presumption of concurrent jurisdiction can be rebutted by an explicit statutory directive, by unmistakable implication from legislative history, or by a clear incompatibility between state-court jurisdiction and federal interests.”
16 later decisions quote this exact passage · from the majority“may sue ... in any appropriate United States district court”
9 later decisions quote this exact passage · from the majority
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.