During the last three decades the ascent of behavioral economics clearly helped to bring down artificial disciplinary boundaries between psychology and economics. Noting that behavioral economics seems still under the spell of the rational choice tradition - and, indirectly, of behaviorism - we...

The paper introduces and discusses some of the most important conceptual ideas in game theory by exploring their implicit answer to the question: Who is a player? It will be illustrated that some of the most celebrated results in game theory rely on different notions of a player, global players...