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dc.contributor.advisorCao, Jiling
dc.contributor.advisorEnsor, Andrew
dc.contributor.authorBhowmik, Anuj
dc.date.accessioned2013-04-07T23:32:18Z
dc.date.available2013-04-07T23:32:18Z
dc.date.copyright2013
dc.date.created2013
dc.date.issued2013-04-08
dc.identifier.urihttp://hdl.handle.net/10292/5257
dc.description.abstractIn this thesis, two most fundamental problems in economic theory, namely the existence and the optimality of Walrasian equilibrium, are studied. It is assumed that there is uncertainty about the realized state of nature in an economy and different agents may have different information. Such an economy is called an economy with asymmetric information. Considering a pure exchange symmetric information economy with finitely many states of nature, an atomless measure space of agents and a Banach lattice as the commodity space, it is shown that the private core and the set of Walrasian allocations coincide. The feasibility in this result is taken as free disposal. This optimality is known as the core-Walras equivalence theorem. When the feasibility is defined without free disposal, then it is shown that if a feasible allocation is not in the private core then it is privately blocked by a coalition of any given measure less than that of the grand coalition. In addition to the above optimality, some other characterizations of Walrasian allocations by the veto power of the grand coalition are also established. One of them deals with robustly efficient allocations in a pure exchange mixed economy with asymmetric information whose commodity space is an ordered separable Banach space having an interior point in its positive cone. Other two characterizations are restricted to a discrete economy with a Banach lattice as the commodity space. First one claims that a feasible allocation is a Walrasian allocation if and only if it is Aubin non-dominated, whereas the other one is interpreted in terms of privately non-dominated allocations in suitable associated economies. The feasibility in all of these results is defined as free disposal. In a pure exchange asymmetric information economy whose space of agents is a finite measure space, space of states of nature is a probability space with a complete measure, and commodity space is defined as the Euclidean space, the existence of a maximin rational expectations equilibrium is established.en_NZ
dc.language.isoenen_NZ
dc.publisherAuckland University of Technology
dc.subjectAsymmetric informationen_NZ
dc.subjectWalrasian equilibriaen_NZ
dc.subjectPrivate coreen_NZ
dc.subjectMaximin rational expectations equilibriumen_NZ
dc.titleBlocking efficiency and competitive equilibria in economies with asymmetric informationen_NZ
dc.typeThesis
thesis.degree.grantorAuckland University of Technology
thesis.degree.levelDoctoral Theses
thesis.degree.nameDoctor of Philosophyen_NZ
thesis.degree.discipline
dc.rights.accessrightsOpenAccess
dc.date.updated2013-04-04T02:50:12Z


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