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Likely Events and Possible States

  • Kin Chung Lo
Published/Copyright: February 14, 2006

This paper provides a recipe to generate definitions of possibility, which is equivalent to the standard approach of deriving possibility from belief/knowledge. Savage's notion of nonnullity is therefore an example that fits into our framework. The recipe is used to create a new definition of possibility, which is logically coherent for all weakly monotonic preferences. For various nonexpected utility models of preference, our new definition improves nonnullity and its existing alternatives.

Published Online: 2006-2-14

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