Why does liberal democracy take hold in some countries but not in others? Why do we observe such different outcomes in military interventions, from Germany and Japan to Afghanistan and Iraq? Do efforts to export democracy help as much as they hurt? These are some of the most enduring questions...

In 2010, Haiti was ravaged by a brutal earthquake that affected the lives of millions. The call to assist those in need was heard around the globe. Yet two years later humanitarian efforts led by governments and NGOs have largely failed. Resources are not reaching the needy due to bureaucratic...