Still dead after all these years

Author(s): Ackerman, Frank

About this Entry
Abstract More than 25 years after the discovery that the equilibrium point of a general equilibrium model is not necessarily either unique or stable, there is still a need for an intuitively comprehensible explanation of the reasons for this discovery. Recent accounts identify two causes of the finding of instability: the inherent difficulties of aggregation, and the individualistic model of consumer behaviour. The mathematical dead end reached by general equilibrium analysis is not due to obscure or esoteric aspects of the model, but rather arises from intentional design features, present in neoclassical theory since its beginnings. Modification of economic theory to overcome these underlying problems will require a new model of consumer choice, nonlinear analyses of social interactions, and recognition of the central role of institutional and social constraints.
Publication Title The journal of economic methodology
Publisher Routledge
Publication Date 2002
Keywords Consumer behaviour
Economic Methodology (B41)
Economics And Physics
Equilibrium models
General Equilibrium
General Equilibrium Theory
General Equilibrium and Disequilibrium: General (D50)
General economic equilibrium
Mathematical Modelling
Mathematical models
Social interaction
Sonnenschein-MANTEL-DEBREU Theorem
View Raw JSON