SPATIAL PRICE EQUILIBRIUM AND THE TRANSPORT SECTOR: A TRADE‐CONSISTENT SCGE MODEL

Asao Ando and Bo Meng

Review of Urban & Regional Development Studies, 2019, vol. 31, issue 3, 234-256

Abstract: In spatial computable general equilibrium models, interregional trade ought to play an important role in determining the spatial price equilibrium. Although the Armington assumption is commonly employed to describe cross‐hauling, many of the existing models do not explicitly consider the behavior of transport firms. This paper presents a framework that is compatible with the Armington assumption and explicitly considers transport activities. In the model, the trade coefficient takes the form of a potential function, and the equilibrium market price becomes similar to the price index in the context of new economic geography. The features of the model are investigated by using the minimal setting, which comprises two nontransport sectors and three regions. Because transport costs are given exogenously, the commodity prices are determined relative to them. The model can be described as a system of homogeneous equations, where an output in one region can arbitrarily be determined similarly as a price in the Walrasian equilibrium.

Date: 2019
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https://doi.org/10.1111/rurd.12104

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Working Paper: Spatial price equilibrium and the transport sector: a trade-consistent SCGE model (2014)
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