Collective Intentionality, Rationality, and Institutions

Team Reasoning and Collective Intentionality

Different versions of the idea that individualism about agency is the root of standard game theoretical puzzles have been defended by Regan 1980, Bacharach (Research in Economics 53: 117-147, 1999), Hurley (Behavioral and Brain Sciences 26: 264-265, 2003), Sugden (Philosophical Explorations 6(3):165-181, 2003), and Tuomela 2013, among others. While collectivistic game theorists like Michael Bac...

Husserl on Collective Intentionality

Collective rationality

The majority of people infected with T. cruzi show some sign or symptom at the time of infection and in a small number of cases acute Chagas disease can be fatal. But for the majority, the symptoms go unnoticed for years and those infected experience no further problems. It is estimated that approximately 70 per cent of these people live with the parasite without their health being affected. Ne...

Collective rationality in bargaining

Roth (1977) axiomatized the Nash (1950) bargaining solution without Pareto optimality. His result is considered an improvement on Nash’s original one, since it dispenses with notions of collective rationality. Several variants of Roth’s result have been obtained in a line of subsequent works. However, all of them rely on Nash’s (1950) independence axiom. Whether or how collective rationality ca...

Collective Rationality and Social Choice

Arrow’s impossibility theorem states that if a collective choice rule satisfies unrestricted domain, weak Pareto, independence of irrelevant alternatives, and collective rationality, then there exists a dictator. Among others, Arrow’s postulate of collective rationality is controversial. We propose a new axiom for a collective choice rule, decisiveness coherence, which is weaker than collective...