University of Pittsburgh Law Professor Rhonda Wasserman has posted a working paper to the Social Science Research Network (SSRN) with the weighty title “Transnational Class Actions and Interjurisdictional Preclusion.”  While it spends a great deal of time reviewing the current state of the literature on preclusion in class actions and class-action regimes in other countries (both useful surveys to have), the paper asks a simple but important question for class-action defendants: If a defendant settles a class action involving more than one country’s citizens, can it enforce the agreement against all of the class members?

This is not an abstract question. Multi-national class actions are becoming more common.  And for many defendants, the one benefit of class-action litigation is that it offers a degree of finality that one cannot find in individual litigation, and only rarely in mass torts.

To answer that question, Wasserman reviews a report of the British Institute of International and Comparative Law, which surveyed the preclusion doctrines of various European countries, including (among others) the United Kingdom (England and Wales), Germany, France, and Romania. As Wasserman reports, the Institute comes to three conclusions:

• Claim preclusion in Europe is “quite a bit narrower than the transactional test that is applied widely in the United States.” In particular, European courts are less likely to give preclusive effect to classwide settlements.
• “[A]bout half of the participating European countries do not accord their judgments issue preclusive effect.”
• “[A] review of the European class action and collective action vehicles reveals a deep reluctance to bind those who neither commence litigation in their own name nor affirmatively choose to opt in.”

What does this mean for class-action defendants? It actually has two implications, both equally important:

First, a defendant looking to settle a multi-national class action should be very sure of the preclusion doctrines in the countries where it may seek to enforce any settlement agreements.

But second, a multi-national class action may not be superior to other forms of litigation, because it may not resolve the dispute for various members of the class.