Ballester, C., and P. Hernández
Revista Internacional de Sociología – 70.Extra 1 (2012): 27-38

Paraules clau:: Bounded rationality,np-completeness,guessing games, rationality,incomplete information,beauty contest,segregation,machines,Subgame,equilibrium,schelling,sequential game,complexity

Resum: The observation of the actual behavior by economic decision makers in the lab and in the field justifies that bounded rationality has been a generally accepted assumption in many socio-economic models. the goal of this paper is to illustrate the difficulties involved in providing a correct definition of what a rational (or irrational) agent is. In this paper we describe two frameworks that employ different approaches for analyzing bounded rationality. The first is a spatial segregation set-up that encompasses two optimization methodologies: back- ward induction and forward induction. The main result is that, even under the same state of knowledge, ratio- nal and non-rational agents may match their actions. The second framework elaborates on the relationship between irrationality and informational restrictions. We use the beauty contest (Nagel, 1995) as a device to explain this relationship.