Jaffray, J-Y.

function belief belief functions sure-thing principle principle information probability decision sure-thing approach belief function belief function approach example outcome ignorance event jaffray decision maker bayesian approach state probability measure axiom preference measure value bayesian neutrality axiom m 6bius customer stage truth value probabilizable section theory belief functions f space maker article model independence truth neutrality 1/2 utility provable preference relation figure subset uncertainty foundation representation mapping cohen setup jean-yve condition choice mixture knowledge outcome m statistic herstein relation probability measures element princeton university press price wakker example 2.1. lemma 5.2. situation price range schmeidler probabilizable information decision theory respect retailer probability theory belief function h belief function f