Economic agglomerations and spatio-temporal cycles in a spatial growth model with capital transport cost

Joao Plinio Juchem Neto, J.C.R. Claeyssen and S.S. Pôrto Júnior

Physica A: Statistical Mechanics and its Applications, 2018, vol. 494, issue C, 76-86

Abstract: In this paper we introduce capital transport cost in a unidimensional spatial Solow–Swan model of economic growth with capital-induced labor migration, considered in an unbounded domain. Proceeding with a stability analysis, we show that there is a critical value for the capital transport cost where the dynamic behavior of the economy changes, provided that the intensity of capital-induced labor migration is strong enough. On the one hand, if the capital transport cost is higher than this critical value, the spatially homogeneous equilibrium of coexistence of the model is stable, and the economy converges to this spatially homogeneous state in the long run; on the other hand, if transport cost is lower than this critical value, the equilibrium is unstable, and the economy may develop different spatio-temporal dynamics, including the formation of stable economic agglomerations and spatio-temporal economic cycles, depending on the other parameters in the model. Finally, numerical simulations support the results of the stability analysis, and illustrate the spatio-temporal dynamics generated by the model, suggesting that the economy as a whole benefits from the formation of economic agglomerations and cycles, with a higher capital transport cost reducing this gain.

Keywords: Spatial economic growth model; Reaction–diffusion–advection system; Stability analysis; Pattern formation (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:494:y:2018:i:c:p:76-86

DOI: 10.1016/j.physa.2017.12.036

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