作者：Hartmann, Lorenz
作者单位：University of Freiburg
摘要：Savage (1954) provided the first axiomatic characterization of expected utility without relying on any given probabilities or utilities. It is the most famous preference axiomatization existing. This note shows that Savage's axiom P3 is implied by the other axioms, which reveals its redundancy. It is remarkable that this was not noticed before as Savage's axiomatization has been studied and taught by hundreds of researchers for more than six decades.
作者：Trevino, Isabel
作者单位：University of California System; University of California San Diego
摘要：Two main classes of channels are studied as informational sources of financial contagion. One is a fundamental channel that is based on real and financial links between economies, and the second is a social learning channel that arises when agents base their decisions on noisy observations about the actions of others in foreign markets. Using global games, I present a two-country model of financial contagion in which both channels can operate and I test its predictions experimentally. The expe...
