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Readers might be interested in this piece I've posted over at Foreign Policy with a co-author highlighting the virtues of the criminal courts as an essential tool in counterterrorism. Beyond the stats themselves - nearly 500 criminal cases related to international terrorism since 9/11, including 67 cases involving defendants captured overseas according to DOJ -I'd say the real significance...

[Emilie M. Hafner-Burton is a Professor at the School of International Relationship and Pacific Studies, IR/PS, at the University of California San Diego and Director of the Laboratory on International Law and Regulation. David G. Victor is a Professor at the School of International Relationship and Pacific Studies, IR/PS, at the University of California San Diego and Director of the Laboratory on International Law and Regulation.] Over the last decade there has been a surge in scholarship on the economics of international law (see Goldsmith & Posner, Posner & Sykes, Guzman and Pauwelyn). On almost every topic in international law—from the practical import of customary law to the repayment of “odious debt” to the laws of war—the economic perspective offers important insights into how international law actually works. At last there’s one book to introduce the basic concepts and illustrate their utility.  Law students and academics, alike, will welcome Eric Posner and Alan Sykes’ Economic Foundations of International Law. This new book will likely gain most of its readership in law schools, but for scholars the book’s greatest value may lie in helping to deepen communication between political scientists and lawyers who have been part of the “empirical turn” in research on international law. Posner and Sykes—and the method of economic analysis of law—will help political scientists disentangle the many ways that law affects behavior and actually measure those effects.  While quantitative empirical research will never reveal the full color of why states create and honor international law, this line of collaboration between lawyers and political scientists can help reveal exactly which types of international laws actually help states advance their interests and solve collective policy problems.

[Andrew Guzman is Professor of Law and Director of the Advanced Law Degree Programs at Berkeley Law School, University of California, Berkeley.] This is a superb book.  I say this without the slightest bit of surprise, as that is what one would expect from these authors.  In addition to the quality of the content, the book is all the more important because there is no comparable tour of international law from a law and economics perspective.  I have disagreements with some of the content of the book – it would be impossible to produce a serious book with respect to which other scholars were in total agreement – but this should now be a central part of the canon, not only of the law and economics of international law, but of international more broadly. It is perhaps a sign of a maturing discussion within international law that the book does not bother to include a discussion of why studying international law from an economic perspective is useful.  This area of legal scholarship has been slow to embrace analytical approaches and for many years anyone writing in that style felt the need to defend the methodology itself.  It would be wonderful if we have moved past that point. That said, it is worth noting that one of the benefits of an economic approach is that it encourages us to make clear our assumptions and models of behavior.  In so doing we more fully disclose our intellectual commitments which, in turn, allows others to challenge or build on our claims.  When we disagree, we can more effectively examine one another’s arguments and identify the precise points in dispute. In my brief comment, I would like to take advantage of this feature and build off of some of what Posner-Sykes say to make a point about international cooperation in general and, more explicitly, in the area of climate change.  I do not know if the authors would agree with my views, but the discipline imposed by an economic approach should, at a minimum, make clear why we disagree.

This week we're hosting a symposium on Economic Foundations of International Law, the new book by Eric Posner and Alan Sykes. Here is the abstract: The ever-increasing exchange of goods and ideas among nations, as well as cross-border pollution, global warming, and international crime, pose urgent questions for international law. Here, two respected scholars provide an intellectual framework for assessing these...

The EU has approved a new bailout for Cyprus. The leader of Syria's opposition has resigned. The Syrian crisis has also triggered a political crisis in neighboring Lebanon, as this article in the FT explains. The UN has reported that at least 35 have been killed over the weekend in Lubumbashi in southeast Congo when militia attacked the city before surrendering to UN troops. Violence in Mali continues as the army battles...

It's always exciting when the media pays attention to expert reports on international law. Unfortunately, the media all too often gets international law wrong -- and recent reporting on the Tallinn Manual on International Law Applicable to Cyber Warfare is no exception. There has been a spate of articles in the past couple of days that breathlessly claim the Tallinn Manual...

Upcoming Events On April 8-9, 2013, The Institute for International Law and Justice, New York University School of Law, in partnership with the Schumpeter Research Group at the University of Giessen, is organizing a conference on Innovation in Governance of Development Finance: Causes, Consequences and the Role of Law.  Registration is now open here. Registration is now open for the Twenty-first Annual Conference...

This week on Opinio Juris, CIA drone strikes remained in the spotlight. Continuing on last week's post, Kevin tried to get to the bottom of the CIA's involvement in drone strikes and whether it is sufficient to trigger criminal liability, which sparked a long discussion in the comments with John C. Dehn. Deborah welcomed news reports about a possible transfer of the...

Ben Emmerson, counsel for al-Senussi, has asked the Pre-Trial Chamber to refer Libya to the Security Council for ignoring its February 6 decision ordering Libya to transfer al-Senussi to the Court. Here are the key paragraphs: 3. It has been almost six weeks since the Chamber‟s Order of 6 February, and Libya has failed to comply with every one of these...

Italy has promised India that the two Italian marines facing murder charges over the killing of two Indian fishermen mistaken for pirates will return to India today, after promises were made that the special court set up to rule on their case will respect their fundamental rights. Ahead of Chinese President Xi Jinping's visit to Russia, President Putin has said that the two...

Jhesus-Maria, King of England, and you, Duke of Bedford, who call yourself regent of the Kingdom of France, you, Guillaume de la Poule, count of Suffort, Jean, sire of Talbot, and you, Thomas, sire of Scales, who call yourselves lieutenants of the Duke of Bedford, acknowledge the summons of the King of Heaven.  Render to the Maid here sent by...