Econometric Analysis on the Impact of Income on the Consumption of Food and Non-Alcoholic Beverages in Serbia
Ekonometrijska analiza uticaja dohotka na potrošnju hrane i bezalkoholnih pića u Srbiji
Abstract
The subject of research is econometric analysis of consumption of food and non-alcoholic drinks of Serbian households. The aim of the paper is to quantify the impact of income on household expenditures in Serbia for food and non-alcoholic beverages. The underlying research hypothesis is that expenditure on food and non-alcoholic beverages grows slower than income from households. Household surveys in Serbia were used in the period from 2006 to 2018 as data sources carried out by the Statistical Office of the Republic of Serbia according to the methodology of the Agency for Statistics of the European Union. Apart from the descriptive analysis, which gives an overview of the share of household expenditures for the observed product group in the period 2006-2018, based on the seven different functional forms of Engel‘s equations of demand, the parameters of the impact of income on expenditures for the group “Food and non-alcoholic beverages” were evaluated, followed by the subgroups “Food” and “Non-alcoholic drinks” The theoretical and methodological and empirical contribution of this paper is primarily focused on the econometric analysis of the impact of income on household expenditure on the observed product group in Serbia, based on large annual samples of about 5,000 households and on models that adequately approximate the observed dependencies.
Apstrakt
Predmet istraživanja ovog rada jeste ekonometrijska analiza potrošnje hrane i bezalkoholnih pića srbijanskih domaćinstava. Cilj rada jeste da se kvantifikuje uticaj dohotka na izdatke domaćinstava za hranu i bezalkoholna pića. Polazna istraživačka hipoteza je da izdaci za hranu i bezalkoholna pića sporije rastu od dohotka domaćinstava. Kao izvori podataka u radu korišćene su ankete o potrošnji domaćinstava u Srbiji u periodu od 2006. do 2018. godine koje je sproveo Zavod za statistiku Republike Srbije prema metodologiji Agencije za statistiku Evropske unije. Pored deskriptivne analize, kojom je dat pregled učešća izdataka domaćinstava za posmatranom grupom proizvoda u periodu 2006-2018. godine, na osnovu sedam različitih funkcionalnih formi Engelovih jednačina tražnje ocenjeni su parametri uticaja dohotka na izdatke za grupu „Hrana i bezalkoholna pića“, zatim za podgrupe „Hrana“ i „Bezalkoholna pića“. Teorijsko-metodološki i empirijski doprinos ovog rada ogleda se prevashodno na planu svestrane ekonometrijske analize uticaja dohotka na izdatke domaćinstava za posmatranu grupu proizvoda u Srbiji, zasnovane na velikim godišnjim uzorcima od oko 5.000 domaćinstava i na modelima koji dovoljno dobro aproksimiraju proučavane zavisnosti.
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