An abstention doctrine is any of several doctrines that a United States court may apply to refuse to hear a case if hearing the case would potentially intrude upon the powers of another court. Such doctrines are usually invoked where lawsuits involving the same issues are brought in two different court systems at the same time.
In the law of the United States, diversity jurisdiction is a form of subject-matter jurisdiction that gives U.S. federal courts the power to hear lawsuits that do not involve a federal question. For a U.S. federal court to have diversity jurisdiction over a lawsuit, two conditions must be met. First, there must be "diversity of citizenship" between the parties, meaning the plaintiffs must be citizens of different U.S. states than the defendants. Second, the lawsuit's "amount in controversy" must be more than $75,000. If a lawsuit does not meet these two conditions, U.S. federal courts will normally lack the power to hear it unless it involves a federal question, and the lawsuit would need to be heard in state court instead.
Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938), was a landmark U.S. Supreme Court decision in which the Court held that there is no general American federal common law and that U.S. federal courts must apply state law, not federal law, to lawsuits between parties from different states that do not involve federal questions. In reaching this holding, the Court overturned almost a century of federal civil procedure case law, and established the foundation of what remains the modern law of diversity jurisdiction as it applies to United States federal courts.
Federal common law is a term of United States law used to describe common law that is developed by the federal courts, instead of by the courts of the various states. The United States is the only country to combine the creation of common law doctrines with a complete federalism, wherein the national supreme court has virtually no power to review state court decisions to determine whether the state courts have followed state laws. The High Court of Australia is sometimes said to have federal common law, but because all state and territorial courts are directly appealable to the High Court, this is indistinguishable from a general common law. In contrast, the United States Supreme Court has effectively barred the creation of federal common law in areas traditionally under the authority of state courts. Nevertheless, there are several areas where federal common law continues to govern.
The Erie doctrine is a fundamental legal doctrine of civil procedure in the United States which mandates that a federal court called upon to resolve a dispute not directly implicating a federal question must apply state substantive law.
Swift v. Tyson, 41 U.S. 1 (1842), was a case brought in diversity in the Circuit Court for the Southern District of New York on a bill of exchange accepted in New York in which the Supreme Court of the United States determined that United States federal courts that heard cases brought under their diversity jurisdiction under the Judiciary Act of 1789 must apply statutory state laws when the state legislatures in question had spoken on the issue, but did not have to apply the state's common law if the state legislatures had not spoken on the issue.
Sampson v. Channell, 110 F.2d 754, was a United States Court of Appeals decision interpreting the application of the Erie doctrine where diversity jurisdiction is invoked in a choice of law situation, where a court in one state may be called upon to apply the laws of another state.
Banco Nacional de Cuba v. Sabbatino, 376 U.S. 398 (1964), was a United States Supreme Court case that determined that the policy of United States federal courts would be to honor the Act of State Doctrine, which dictates that the propriety of decisions of other countries relating to their internal affairs would not be questioned in the courts of the United States.
Burford v. Sun Oil Co., 319 U.S. 315 (1943), was a United States Supreme Court case in which the Court created a new doctrine of abstention.
Clearfield Trust Co. v. United States, 318 U.S. 363 (1943), was a case in which the Supreme Court of the United States held that federal negotiable instruments were governed by federal law, and thus the federal court had the authority to fashion a common law rule.
Guaranty Trust Co. v. York, 326 U.S. 99 (1945), was a United States Supreme Court case that described how federal courts were to follow state law. Justice Frankfurter delivered the majority opinion further refining the doctrine set forth in Erie Railroad Co. v. Tompkins.
Hanna v. Plumer, 380 U.S. 460 (1965), was a decision by the Supreme Court of the United States, in which the Court further refined the Erie doctrine regarding when and by what means federal courts are obliged to apply state law in cases brought under diversity jurisdiction. The question in the instant case was whether Federal Rules of Civil Procedure governing service of process should yield to state rules governing the service of process in diversity cases. The Court ruled that under the facts of this case, federal courts shall apply the federal rule. The decision was drafted by John Hart Ely, who was then a law clerk for Earl Warren.
Black and White Taxicab and Transfer Company v. Brown and Yellow Taxicab and Transfer Company, 276 U.S. 518 (1928), was a United States Supreme Court case in which the Court refused to hold that federal courts sitting in diversity jurisdiction must apply state common law. Ten years later, in Erie Railroad Co. v. Tompkins, the Court reversed course, and overturned Swift v. Tyson.
Caterpillar Inc. v. Lewis, 519 U.S. 61 (1996), held that federal jurisdiction predicated on diversity of citizenship can be sustained even if there did not exist complete diversity at the time of removal to federal court, so long as complete diversity exists at the time the district court enters judgment.
General Talking Pictures Corp. v. Western Electric Co., 304 U.S. 175 (1938), was a case that the Supreme Court of the United States decided in 1938. The decision upheld so-called field-of-use limitations in patent licenses: it held that the limitations were enforceable in a patent infringement suit in federal court against the licensee and those acting in concert with it—for example, a customer that knowingly buys a patented product from the licensee that is outside the scope of the license.
Gasperini v. Center for Humanities, 518 U.S. 415 (1996), was a decision by the Supreme Court of the United States in which the Court further refined the Erie doctrine regarding when and how federal courts are to apply state law in cases brought under diversity jurisdiction. The Court held that the New York state rule applied.
Stewart Organization, Inc. v. Ricoh Corp., 487 U.S. 22 (1988), is a United States Supreme Court case in which the Court further refined the test for determining whether federal courts sitting in diversity must apply state law as opposed to federal law under the Erie doctrine. The question in Stewart was whether the federal venue transfer statute, 28 U.S.C. § 1404(a), occupied the field or whether Alabama law's unfavorable stance towards forum-selection clauses should instead be applied. The Court held that the federal statute governed the District Court's decision whether to give effect to the forum-selection clause.
United Gas Pipe Line Co. v. Ideal Cement Co., 369 U.S. 134 (1962), is a United States Supreme Court case which vacated a lower appellate court decision, holding that federal courts should abstain from ruling on the constitutionality of a state tax issue that state courts should determine.
