systems, in which there is common knowledge of rationality and a common prior. We show here that common knowledge of … rationality is not needed: when rationality is satisfied in the support of an action-consistent distribution (a concept introduced … rational belief systems’ there may not be mutual knowledge of rationality, let alone common knowledge of rationality. In the …

rationality. The I account implies that the preference relation satisfies in- dependence of circumstances, whereas the IB account …. Finally, when examining game-theoretical implications of Epictetusian rationality, we show that the two accounts of Epictetus …