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The effect of alcohol consumption on household income in Ireland
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Accepted Version
Date
2016-10-05
Authors
Ormond, Gillian
Murphy, Rosemary
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Published Version
Abstract
This paper presents a study of the effects of alcohol consumption on household income in Ireland using the Slán National Health and Lifestyle Survey 2007 dataset, accounting for endogeneity and selection bias. Drinkers are categorised into one of four categories based on the recommended weekly drinking levels by the Irish Health Promotion Unit; those who never drank, non-drinkers, moderate and heavy drinkers. A multinomial logit OLS Two Step Estimate is used to explain individual's choice of drinking status and to correct for selection bias which would result in the selection into a particular category of drinking being endogenous. Endogeneity which may arise through the simultaneity of drinking status and income either due to the reverse causation between the two variables, income affecting alcohol consumption or alcohol consumption affecting income, or due to unobserved heterogeneity, is addressed. This paper finds that the household income of drinkers is higher than that of non-drinkers and of those who never drank. There is very little difference between the household income of moderate and heavy drinkers, with heavy drinkers earning slightly more. Weekly household income for those who never drank is €454.20, non-drinkers is €506.26, compared with €683.36 per week for moderate drinkers and €694.18 for heavy drinkers.
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Keywords
Alcohol , Income , Endogeneity , Selection bias , Multinomial logit
Citation
Ormond, G. and Murphy, R. (2016) ‘The effect of alcohol consumption on household income in Ireland’, Alcohol, 56, pp. 39-49. doi: 10.1016/j.alcohol.2016.10.003