Explores the emergence of international cooperation beyond the core global nonproliferation treaties. The contributors examine why these other cooperative nonproliferation mechanisms have emerged, assess their effectiveness, and ask how well the different pieces of the global nonproliferation regime complex fit together.

Applies the insights of behavioural economics to the study of nuclear weapons policy. Contributors to this collection examine how a behavioral approach might inform our understanding of topics such as deterrence, economic sanctions, the nuclear nonproliferation regime, and US domestic debates about ballistic missile defense.