Many pundits and leaders in the U.S. government hope to use the model of successful military innovation to stimulate innovation for green technologies – notwithstanding criticisms that defense technologies are often expensive and esoteric and sometimes fail to meet optimistic performance...

This article improves Clayton Christensen's widely cited theory of innovation and applies it to explain recent developments in the U.S. defense industry. We clarify Christensen's categorization of innovations, and expand the theory's scope to products with multiple quality attributes and markets...

The end of the Cold War ushered in a unipolar world, cementing U.S. dominance over a generally liberal international order. Yet where once it seemed that U.S. foreign policy would be simpler and easier to manage as a result, the events of the past 15 years — the 9/11 attacks, the invasions of...

Several scholars have tried to import arguments about selection effects from the literature on deterrence crises into the context of studies of economic sanctions. They claim that datasets of economic sanctions episodes oversample highly motivated target states, because less motivated targets...