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Physical and expenditure formulations of demand functions and evaluations of price demand elasticity

Author

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  • Pavel Syrovátka

    (Ústav ekonomie, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika)

Abstract

Studies of the demand relations on the consumer markets bring much useful information. The concept of the elasticity coefficients is frequently used for the quantitative analysis of the demand sensitivity. Formulation of the investigated demand functions is very important for the evaluation of the demand elasticity. Within net consumer demand (consumer purchase), it is possible to differentiate the physical and expenditure forms of the demand functions. The paper is focused on the theoretical and methodological backgrounds of the evaluation of price-demand elasticity under the physical and expenditure definitions of the demand relationships. In this paper, the relationship between the coefficient of the price elasticity of demand in the physical form and the coefficient of the price elasticity of demand in the expenditure form is determined and studied. The derived formula is tested using the USDA database.

Suggested Citation

  • Pavel Syrovátka, 2012. "Physical and expenditure formulations of demand functions and evaluations of price demand elasticity," Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, Mendel University Press, vol. 60(2), pages 379-382.
    • Handle: RePEc:mup:actaun:actaun_2012060020379
    DOI: 10.11118/actaun201260020379
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