Grant, Simon; Özsoy, Hatice; Polak, Ben - In: Mathematical Social Sciences 55 (2008) 3, pp. 371-380
Machina and Schmeidler [Machina, M., Schmeidler, D., 1992. A more robust definition of subjective probability. Econometrica 60, 745-780] show that probabilistic sophistication can be obtained in a Savage setting without imposing expected utility by dropping Savage's axiom P2 (sure-thing...