Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/84261
Authors: 
Coloma, Germán
Year of Publication: 
2006
Series/Report no.: 
Serie Documentos de Trabajo, Universidad del CEMA: Área: economía y negocios 322
Abstract: 
This paper develops a model for demand-system estimations, whose coefficients are own-price Marshallian elasticities and elasticities of substitution between goods. The model satisfies the homogeneity, symmetry and, eventually, adding-up restrictions implied by consumer theory, and is primarily useful for the estimation of the demands of several goods of the same industry or group of products. The characteristics of the model are compared to other existing alternatives (logarithmic, translog, AIDS and QUAIDS demand systems). The model is finally applied to estimate the demands for several carbonated soft drinks in Argentina, and its results are presented, together with the ones obtained with the other estimation methods.
Subjects: 
Demand Systems
Elasticity of Substitution
Simultaneous Equations
Carbonated Soft Drinks
JEL: 
C30
C51
D12
L66
Document Type: 
Working Paper

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