From an article on the multidisciplinary influence of Kahneman and Tversky:
Political scientists use prospect theory to model foreign-policy decision making. Some international-relations scholars argue that cognitive biases favor hawkish policies, making wars more likely to begin and more difficult to end. (Kahneman shares that view.)That's the only part of the article discussion IR (no hypen needed) or other political science. I'll admit that I don't follow the FP decision-making lit very closely, but this doesn't ring true to me. Yes, the classic Kahneman/Tversky prospect theory article was on my Intro to IR Theory first-year syllabus, but it was tucked into the "Other Approaches" week at the end of the semester. I have to say that I've come across few major IR articles that have explicitly adopted a behavioralist frame.
Perhaps others can fill in the gaps in my education. I welcome comment.