Customary international law is one of the three main sources of international law; lamentably, it has historically received little attention from law and economics scholars, despite providing rich material for economic analysis. In this chapter, we provide a concise overview of recent research...

Current law and economics scholarship analyzes efficient breach cases monolithically. The standard analysis holds that breach is efficient when performance of a contract generates a negative surplus for the parties. However, by simplistically grouping efficient breach cases as of a single kind,...