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KNOWLEDGE CREATION AS A SQUARE DANCE ON THE HILBERT CUBE*

International Economic ReviewPublished 20 October 2008
Marcus Berliant, Masahisa Fujita
Citations131
SJR quartileQ1
SJR score3.24
SNIP1.51

TL;DR

Surprisingly, in the general case for a large set of initial conditions, the equilibrium process of knowledge creation may converge to the most productive state, where the population splits into smaller groups of optimal size; close interaction takes place within each group only.

Abstract

This article presents a micromodel of knowledge creation through the interactions among a group of people. The model features myopic agents in a pure externality model of interaction. Surprisingly, for a large set of initial conditions we find that the equilibrium process of knowledge creation converges to the most productive state, where the population splits into smaller groups of optimal size; close interaction takes place within each group only. This optimal size is larger as heterogeneity of knowledge is more important in the knowledge production process. Equilibrium paths are found analytically; they are a discontinuous function of initial heterogeneity.

Keywords

Decision SciencesEconomics, Econometrics and Finance