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Data on Choice-of-Court Clause Enforcement in US
The United States legal system is immensely complex. There are state courts and federal courts, state statutes and federal statutes, state common law and federal common law. When I imagine a foreign lawyer trying to explain this system to a foreign client, my heart fills with pity.
This feeling of pity is compounded when I imagine this same lawyer trying to advise her client as to whether a choice-of-court clause will be enforced by a court in the United States. The law on this subject is complicated. It is, moreover, not easy to determine how it is applied in practice. Are there differences in clause enforcement rates across the states? Across federal circuits? Do state courts enforce these clauses at the same rate as federal courts? Until recently, there was no data that would allow a foreign lawyer – or a U.S. lawyer, for that matter – to answer any of these questions.
Over the past several years, I have authored or co-authored several empirical articles that seek to answer the questions posed above. This post provides a summary of the data gathered for these articles. All of the cases referenced involve outbound choice-of-court clauses, i.e. clauses that select a jurisdiction other than the one where the suit was filed. Readers interested in the data collection process, the caveats to which the data is subject, or other methodological issues should consult the articles and their appendices. This post first describes state court practice. It then describes federal court practice. It concludes with a brief discussion comparing the two.
Polish Constitutional Court about to review the constitutionality of the jurisdictional immunity of a foreign State?
Written by Zuzanna Nowicka, lawyer at the Helsinki Foundation for Human Rights and lecturer at Department of Logic and Legal Argumentation at University of Warsaw
In the aftermath of the judgment of the ICJ of 2012 in the case of the Jurisdictional Immunities of the State (Germany v. Italy: Greece intervening) that needs no presentation here (for details see, in particular, the post by Burkhard Hess), by its judgment of 2014, the Italian Constitutional Court recognized the duty of Italy to comply with the ICJ judgment of 2012 but subjected that duty to the “fundamental principle of judicial protection of fundamental rights” under Italian constitutional law (for a more detailed account of those developments see this post on EAPIL by Pietro Franzina and further references detailed there). In a nutshell, according to the Italian Constitutional Court, the fundamental human rights cannot be automatically and unconditionally sacrificed in each and every case in order to uphold the jurisdiction immunity of a foreign State allegedly responsible for serious international crimes.
Since then, the Italian courts have reasserted their jurisdiction in such cases, in some even going so far as to decide on the substance and award compensation from Germany. The saga continues, as Germany took Italy to the ICJ again in 2022 (for the status of the case pending before the ICJ see here). It even seems not to end there as it can be provocatively argued that this saga has its spin-off currently taking place before the Polish courts.
The Greek Supreme Court has decided: Relatives of persons killed in accidents are immediate victims
A groundbreaking judgment was rendered last October by the Greek Supreme Court. Relatives of two Greek crew members killed in Los Llanos Air Base, Spain, initiated proceedings before Athens courts for pain and suffering damages (solatium). Although the action was dismissed by the Athens court of first instance, and the latter decision was confirmed by the Athens court of appeal, the cassation was successful: The Supreme Court held that both the Brussels I bis Regulation and the Lugano Convention are establishing international jurisdiction in the country where the relatives of persons killed are domiciled, because they must be considered as direct victims.
THE FACTS
On 26 January 2015, an F-16D Fighting Falcon jet fighter of the Hellenic Air Force crashed into the flight line at Los Llanos Air Base in Albacete, Spain, killing 11 people: the two crew members and nine on the ground.
The relatives of the Greek crew members filed actions for pain and suffering damages before the Athens court of first instance against a US (manufacturer of the aircraft) and a Swiss (subsidiary of the manufacturer) company. The action was dismissed in 2019 for lack of international jurisdiction. The appeals lodged by the relatives before had the same luck: the Athens court of appeal confirmed in 2020 the first instance ruling. The relatives filed a cassation, which led to the judgment nr. 1658/5.10.2022 of the Supreme Court.
News
New Article on Public Policy Exception
In every private international law system, the forum state reserves the right to reject the application of a foreign rule that deeply offends the forum’s fundamental sense of justice and fairness. In all systems, this “public policy reservation” (ordre public) operates as an exception to the forum’s choice-of-law rules, not its rules on jurisdiction or access to courts. Surprisingly, the First and Second Conflicts Restatements in the United States deviate from this international consensus by narrowly phrasing the exception as a ground for denying a forum to foreign causes of action rather than as a ground for refusing to apply other foreign rules, including those raised as defenses.
A forthcoming article by Symeon Symeonides titled The Public Policy Exception in Choice of Law: The American Version discusses the origins of this unique formulation in Judge Cardozo’s classic but misinterpreted decision in Loucks v. Standard Oil Co. of New York, the problems it creates, its tacit rejection by most American courts, and the new flexible formulation of the exception in the proposed Third Conflicts Restatement.
The article will be published in Praxis des Internationalen Privat- und Verfahrensrechts (IPRax), as well as in a special issue of the Emory Journal of International Law dedicated to the renowned conflicts scholar Peter Hay.
Praxis des Internationalen Privat- und Verfahrensrechts (IPRax) 3/2025: Abstracts
The latest issue of the „Praxis des Internationalen Privat- und Verfahrensrechts“ (IPRax) features the following articles:
Virtual Workshop (in English) on May 6: Konrad Duden on “Squaring the Circle – Recognising Rare Family Forms and Gender Identities Within the EU”

On Tuesday, May 6, 2025, the Hamburg Max Planck Institute will host its monthly virtual workshop Current Research in Private International Law at 11:00 a.m. – 12:30 p.m. (CEST). Professor Konrad Duden (University of Hamburg) will speak, in English, about the topic
“Squaring the Circle – Recognising Rare Family Forms and Gender Identities Within the EU”
The principle of recognition has long been a feature of European private international law – increasingly also in matters of family law and the law of personal status. Recent case law has focused on so-called rainbow families – same-sex marriages and parenthood – and changes in legal gender markers. These are issues that are treated very differently across the EU, with extensive protection and equal treatment in some Member States, and clear and in some cases constitutional rejection in others. The CJEU is therefore trying to reconcile two contradictory principles: The exclusive competence of Member States in substantive family and civil status law on the one hand and the Union-wide recognition of families and gender identities registered in one Member State on the other. This presentation will examine how the CJEU attempts to resolve this conflict and what conclusions can be drawn from the case law on the nature and scope of the principle of recognition.
The presentation will be followed by open discussion. All are welcome. More information and sign-up here.
If you want to be invited to these events in the future, please write to veranstaltungen@mpipriv.de.


