We identify conditions under which preferences over subsets of a consumption world can be reduced to preferences over bundles of "commodities". We distinguish ordinal bundles, whose coordinates are defined up to monotone transformations, from cardinal bundles, whose coordinates are defined up to...

Money, which provides liquidity, is distinct from debt. The introduction of a bank that issues money in exchange for debt and pPolemarchakisays out its profit as dividend to shareholders modifies the model of overlapping generations. The set of equilibrium paths, their dynamic properties, as...

Under take-it-or-leave-it offers, dynamic equilibria in the discrete time random matching model of money are a "translation" of dynamic equilibria in the standard overlapping generations model. This formalizes earlier conjectures about the equivalence of dynamic behavior in the two models and...