Replication Data for: Shooting From the Hip: The Counterintuitively Intuitive Nature of Deterrence

Much if not most of human judgment is intuitive rather than reflective, but what types of behaviors result from non-deliberative as opposed to deliberative choice? We argue that for evolutionary reasons, intuition favors retaliatory aggression and a reliance on the deterrence model, the set of hunches that stress the importance of standing firm and demonstrating resolve to avoid challenges. By contrast, careful and analytical thought tends towards diplomacy and cooperation. By thinking from the gut and shooting from the hip, humans solved deterrence challenges in our evolutionary past. Across four studies -- a time pressure experiment, an observational survey of thinking styles, a large-scale text analysis of Cold War US foreign policy elites, and a case study of US President Ronald Reagan -- we find support for these expectations. These results are surprising, given that deterrence is often associated with rational deliberation. Instead, the intuitive nature of retaliatory aggression and the embrace of the deterrence model seem to be ecologically rational.