This article explores parallels between the debate prompted by Pareto's reformulation of choice theory at the beginning of the twentieth century and current controversies about the status of behavioural economics. Before Pareto's reformulation, neoclassical economics was based on theoretical and...

The paper presents a theoretical framework that distinguishes between the strategic structure of a game (the existential game) and the way the players describe the game to themselves. Each player works with a private description of the game in which strategies are identified by labels; labels...

We report an experimental test of level-k theory, applied to three simple games with non-neutral frames: Coordination, Discoordination and Hide and Seek. Using the same frame for all three games, we derive hypotheses that apply across the games and are independent of prior assumptions about...