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POPYT NA ALKOHOL W POLSCE: WYNIKI ESTYMACJI MODELU QUAIDS

100%
Wolak J.
Metody Ilościowe w Badaniach Ekonomicznych
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2015
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vol. 16
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issue 4
211-219
PL
Artykuł jest poświęcony analizie popytu na napoje alkoholowe w Polsce. Na podstawie danych rocznych, obejmujących lata 1961–2013, przeprowadzono estymację modelu QUAIDS i w konsekwencji otrzymano oszacowania cenowych i dochodowych elastyczności popytu na wyroby spirytusowe, piwo i wino. Uzyskane wskaźniki wskazują na to, że rozważane rodzaje alkoholu są dobrami normalnymi o popycie nieelastycznym.
EN
"This paper is focused on the analysis of demand for alcoholic beverages in Poland. Based on of annual data, covering the period 1961–2013, QUAIDS model was estimated. The obtained estimates of price and income elasticity of demand for spirits, beer and wine suggest that presented types of alcohol are normal goods with inelastic demand. "
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Elasticity of consumer demand: estimation using a QuadRatic Almost Ideal Demand System

94%
Gostkowski M.
Econometrics. Ekonometria. Advances in Applied Data Analytics
|
2018
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issue vol. 22 no. 1
68-78
EN
This paper analyzes consumer demand using a Quadratic Almost Ideal Demand System (QUAIDS), which is an extension of an Almost Ideal Demand System (a complete demand system). Complete demand system models can be used to find the relationships that are impossible to discover using single-equation models. Additionally, the QUAIDS model can be used to model a nonlinear Engel curve. The research was based on household microeconomic data collected by GUS (the Polish Central Statistical Office) in the period 1999-2015. The complete demand model has been extended by demographic variable. The results show that the QUAIDS model does not reduce to the AIDS model and is an adequate tool to analyze consumer demand.
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