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Please use this identifier to cite or link to this item: http://hdl.handle.net/2344/846

タイトル: Trade Coefficients and the Role of Elasticity in a Spatial CGE Model Based on the Armington Assumption
著者: Ando, Asao
Meng, Bo
Chao, Qu
安藤, 朝夫
孟, 渤
超, 屈
キーワード: Armington Assumption
Spatial CGE
Elasticity of substitution
Trade coefficient
Econometric model
Issue Date: 2009
出版者: Institute of Developing Economies, JETRO
引用: IDE Discussion Paper. No. 204. 2009
抄録: The Armington Assumption in the context of multi-regional CGE models is commonly interpreted as follows: Same commodities with different origins are imperfect substitutes for each other. In this paper, a static spatial CGE model that is compatible with this assumption and explicitly considers the transport sector and regional price differentials is formulated. Trade coefficients, which are derived endogenously from the optimization behaviors of firms and households, are shown to take the form of a potential function. To investigate how the elasticity of substitutions affects equilibrium solutions, a simpler version of the model that incorporates three regions and two sectors (besides the transport sector) is introduced. Results indicate: (1) if commodities produced in different regions are perfect substitutes, regional economies will be either autarkic or completely symmetric and (2) if they are imperfect substitutes, the impact of elasticity on the price equilibrium system as well as trade coefficients will be nonlinear and sometimes very sensitive.
URI: http://hdl.handle.net/2344/846
Appears in Collections:04.IDE Discussion Paper
01.経済、産業(Economy and Industry)/特定地域なし(Non Region-specific Studies)

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