Why do governments and rebel groups employ child soldiers in some internal armed conflicts but not in others? While previous studies have examined aspects of the causes and consequences of child soldier usage, to date there has never been a comprehensive empirical analysis that has examined...

Why do governments and rebel groups employ child soldiers in some internal armed conflicts but not in others? While previous studies have examined aspects of the causes and consequences of child soldier usage, to date there has never been a comprehensive empirical analysis that has examined...

While space capabilities were once concentrated among a handful of leading powers, an increasingly large number of states have gained access to them. As of 2007, 58 countries possessed dedicated civil space programs, 44 countries had placed nationally-owned satellites into orbit, and 9 countries...

Despite the U.S. Government's use of economic sanctions as one of its primary counter-proliferation tools, few studies have actually examined their overarching impact on nuclear weapons proliferation. Drawing on the sanctions and nuclear proliferation literatures, I hypothesize that U.S....

To what extent have space and ballistic missile capabilities proliferated globally and what impact have they had on global politics? To date, scholars have lacked a comprehensive data source on states' global space capabilities and only limited data on their ballistic missile arsenals. The...