Security concerns, the AIDS epidemic, environmental degradation, and financial contagion are salient features of today's landscape of threats to global stability. A characteristic of these challenges is that they cant be solved by individual nations acting alone. Enlightened cooperation is needed. This book focuses on actions in the international arena to complement domestic efforts in addressing a set of policy challenges that has become more prominent in the age of globalization. It focuses on the strategic and practical challenges of fostering solutions that have the character of international public goods, paying particular attention to the financing of these goods.