Abstract:
A reference-dependent choice function is a generalization of a standard choice function where chosen alternatives may depend on a reference alternative in addition to the set of feasible options. Such a function is non-deteriorating if there exists an ordering over the universal set of alternatives according to which the chosen alternatives are at least as good as the reference option. We characterize non-deteriorating reference-dependent choice functions in a general framework and in an economic environment. Copyright (c) The London School of Economics and Political Science 2008.