Interactive decision-making relies on strategic reasoning. Two prominent frameworks capture this idea. One follows a structural perspective, exemplified by level-k and Cognitive Hierarchy models, which represent reasoning as an algorithmic process. The other adopts an epistemic perspective,...

Consider an urn filled with balls, each labeled with one of several possible collective decisions. Now let a random voter draw two balls from the urn and pick her more preferred as the collective decision. Relabel the losing ball with the collective decision, put both balls back into the urn,...

Paying it forward" is a behavior in which people help someone else because they were helped in the past. Although experimental evidence exists that indicates that real human beings often "pay-it-forward" even in the face of free-rider risks, the theoretical basis for the evolution of this...

Chapter 1: Introduction -- Chapter 2: No Honor Among Thieves: The Prisoner’s Dilemma -- Chapter 3: The Players -- Chapter 4: Fool Me Once: The Information Set -- Chapter 5 -- Do Unto Others Cooperation in Games -- Chapter 6: A Stitch in Time Sequential Games -- Chapter 7: I Solemnly Swear...