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Armington Parameter Estimation for a Computable General Equilibrium Model: A Database Consistent Approach


  • Xiao-guang Zhang

    (Australian Productivity Commission)

  • George Verikios

    () (Department of Economics, The University of Western Australia)


Substitution elasticities in policy-oriented computable general equilibrium (CGE) models are key parameters for model results since they determine behaviour in these models. As Dawkins et al. (2001) observe, the current situation with regard to the elasticities available for use in these models is poor. We focus on an important type of elasticity that is widely used in CGE models with international trade: the so-called ‘Armington’ elasticities (Armington, 1969). These elasticities are well known for their critical role in determining model results. We present an alternative approach to quantifying Armington elasticities which is consistent across historical databases. The approach is used to derive elasticities from successive databases of a commonly-used global CGE model, the GTAP model.

Suggested Citation

  • Xiao-guang Zhang & George Verikios, 2006. "Armington Parameter Estimation for a Computable General Equilibrium Model: A Database Consistent Approach," Economics Discussion / Working Papers 06-10, The University of Western Australia, Department of Economics.
  • Handle: RePEc:uwa:wpaper:06-10

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    References listed on IDEAS

    1. Arndt, Channing & Robinson, Sherman & Tarp, Finn, 2002. "Parameter estimation for a computable general equilibrium model: a maximum entropy approach," Economic Modelling, Elsevier, vol. 19(3), pages 375-398, May.
    2. McKitrick, Ross R., 1998. "The econometric critique of computable general equilibrium modeling: the role of functional forms," Economic Modelling, Elsevier, vol. 15(4), pages 543-573, October.
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    Cited by:

    1. Fajar Oktiyanto & Harmanta & Nur M. Adhi Purwanto & Aditya Rachmanto, 2014. "Monetary Macroprudential Policy Mix under Financial Frictions Mechanism with DSGE Model," EcoMod2014 6840, EcoMod.
    2. Karplus, Valerie J. & Paltsev, Sergey & Babiker, Mustafa & Reilly, John M., 2013. "Applying engineering and fleet detail to represent passenger vehicle transport in a computable general equilibrium model," Economic Modelling, Elsevier, vol. 30(C), pages 295-305.

    More about this item


    Armington assumption; computable general equilibrium models; estimating Armington paprmeters;

    JEL classification:

    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models
    • D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
    • F17 - International Economics - - Trade - - - Trade Forecasting and Simulation

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