Set-theoretic methods and Qualitative Comparative Analysis (QCA) in particular are case-based methods. There are, however, only few guidelines on how to combine them with qualitative case studies. Contributing to the literature on multi-method research (MMR), we offer the first comprehensive...

War is often attributed to the fact that parties are unable to commit to an agreement, or have incentives to renege on it. This cause of war is known as “commitment problemsâ€. Yet commitment problems are not in themselves sufficient for war. Parties to a conflict can experience...

We know from observation that some democracies intervene deeply in their domestic economies while others adopt a more laissez faire approach. Can we explain these differences solely with ideology, or are other political influences also at work? I argue in this paper that elected leaders...

A major complaint of people who use "decision-making" computer programs is that these programs merely provide a final decision, and fail to present the supporting argumentation, in terms the user can understand. This article presents an approach that makes computer programs more "human-like" by...