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- Title
A Continuous Space Model of New Economic Geography with a Quasi-Linear Log Utility Function.
- Authors
Ohtake, Kensuke
- Abstract
We consider the extension of a tractable NEG model with a quasi-linear log utility function to continuous space, and investigate the behavior of its solution mathematically. The model is a system of nonlinear integral and differential equations describing the market equilibrium and the time evolution of the spatial distribution of population density. A unique global solution is constructed, and a homogeneous stationary solution with an evenly distributed population is shown to be unstable. Furthermore, it is shown numerically that the destabilized homogeneous stationary solution eventually forms spiky spatial distributions. The number of the spikes decreases as the preference for variety increases or the transport cost decreases.
- Subjects
ECONOMIC geography; NONLINEAR integral equations; ECONOMIC models; NONLINEAR differential equations; MARKET equilibrium
- Publication
Networks & Spatial Economics, 2023, Vol 23, Issue 4, p905
- ISSN
1566-113X
- Publication type
Article
- DOI
10.1007/s11067-023-09604-0