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Estimation of demand systems based on elasticities of substitution

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  • Germán Coloma

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.

Suggested Citation

  • Germán Coloma, 2006. "Estimation of demand systems based on elasticities of substitution," CEMA Working Papers: Serie Documentos de Trabajo. 322, Universidad del CEMA.
    • Handle: RePEc:cem:doctra:322
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    Cited by:

    1. Coloma, Germán, 2023. "Demand estimation and market definition in quality-differentiated products: The case of beer in Argentina," Applied Econometrics, Russian Presidential Academy of National Economy and Public Administration (RANEPA), vol. 69, pages 48-64.
    2. Matveenko, Andrei, 2020. "Logit, CES, and rational inattention," Economics Letters, Elsevier, vol. 186(C).
    3. Mendez, Samara & Peacock, Jacob & The Humane League Labs, 2021. "Exploring the impact of plant-based milk alternatives in the US," OSF Preprints tdghp, Center for Open Science.
    4. Braha, Kushtrim & Cupak, Andrej & Qineti, Artan & Pokrivcak, Jan, 2018. "Food Demand System in Transition Economies: Evidence from Kosovo," 162nd Seminar, April 26-27, 2018, Budapest, Hungary 272050, European Association of Agricultural Economists.

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    More about this item

    Keywords

    Demand Systems; Elasticity of Substitution; Simultaneous Equations; Carbonated Soft Drinks;
    All these keywords.

    JEL classification:

    • C30 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - General
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
    • L66 - Industrial Organization - - Industry Studies: Manufacturing - - - Food; Beverages; Cosmetics; Tobacco

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