From this failure to expunge the microeconomic foundations of neoclassical economics from post-Great Depression theory arose the "microfoundations of macroeconomics" debate, which ultimately led to a model in which the economy is viewed as a single utility-maximizing individual blessed with perfect knowledge of the future.Fortunately, behavioral economics provides the beginnings of an alternative vision of how individuals operate in a market environment, while multi-agent modelling and network theory give us foundations for understanding group dynamics in a complex society. These approaches explicitly emphasize what neoclassical economics has evaded: that aggregation of heterogeneous individuals results in emergent properties of the group, which cannot be reduced to the behavior of any "representative individual." These approaches should replace neoclassical microeconomics completely.
Steve Keen, Adbusters #84 Pop Nihilism
2009, behavioral-economics, economics, emergent-properties, group-dynamics, neoclassical-economics, network-theory