Abstract
Background
Alcohol consumption is associated with a range of health and social harms that increase with the level of consumption. Policy makers are interested in effective and cost-effective interventions to reduce alcohol consumption and associated harms. Economic theory and research evidence demonstrate that increasing price is effective at the population level. Price interventions that target heavier consumers of alcohol may be more effective at reducing alcohol-related harms with less impact on moderate consumers. Minimum pricing per unit of alcohol has been proposed on this basis but concerns have been expressed that ‘moderate drinkers of modest means’ will be unfairly penalized. If those on low incomes are disproportionately affected by a policy that removes very cheap alcohol from the market, the policy could be regressive. The effect on households’ budgets will depend on who currently purchases cheaper products and the extent to which the resulting changes in prices will impact on their demand for alcohol. This paper focuses on the first of these points.
Objective
This paper aims to identify patterns of purchasing of cheap off-trade alcohol products, focusing on income and the level of all alcohol purchased.
Method
Three years (2006–08) of UK household survey data were used. The Expenditure and Food Survey provides comprehensive 2-week data on household expenditure. Regression analyses were used to investigate the relationships between the purchase of cheap off-trade alcohol, household income levels and whether the household level of alcohol purchasing is categorized as moderate, hazardous or harmful, while controlling for other household and non-household characteristics. Predicted probabilities and quantities for cheap alcohol purchasing patterns were generated for all households.
Results
The descriptive statistics and regression analyses indicate that low-income households are not the predominant purchasers of any alcohol or even of cheap alcohol. Of those who do purchase off-trade alcohol, the lowest income households are the most likely to purchase cheap alcohol. However, when combined with the fact that the lowest income households are the least likely to purchase any off-trade alcohol, they have the lowest probability of purchasing cheap off-trade alcohol at the population level. Moderate purchasing households in all income quintiles are the group predicted as least likely to purchase cheap alcohol. The predicted average quantity of low-cost off-trade alcohol reveals similar patterns.
Conclusion
The results suggest that heavier household purchasers of alcohol are most likely to be affected by the introduction of a ‘minimum price per unit of alcohol’ policy. When we focus only on those households that purchase off-trade alcohol, lower income households are the most likely to be affected. However, minimum pricing in the UK is unlikely to be significantly regressive when the effects are considered for the whole population, including those households that do not purchase any off-trade alcohol. Minimum pricing will affect the minority of low-income households that purchase off-trade alcohol and, within this group, those most likely to be affected are households purchasing at a harmful level.
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Notes
1 Off-trade alcohol refers to purchases from retail establishments for consumption off premises.
2 An enquiry into the UK grocery market found that alcohol was one of two product groups for which below-cost selling was most prevalent.[8]
3 A unit is 10 mL of pure alcohol.
4 These results are available on request from the corresponding author.
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Acknowledgements
The authors would like to acknowledge the Office for National Statistics and Department for Environment, Food and Rural Affairs, Expenditure and Food Survey, Colchester, Essex: UK Data Archive for access to data from EFS survey years 2006, 2007 and 2008.
Neither the original data creators, depositors or copyright holders, the funders of the Data Collections, nor the UK Data Archive bear any responsibility for the accuracy or comprehensiveness of these materials.
Funding to the Health Economics Research Unit from the Chief Scientist Office, Scottish Government Health Directorates is gratefully acknowledged. The authors are responsible for all views expressed and these should not be attributed to any funding body. The authors would like to thank anonymous referees for their comments and the resulting improvements in the paper.
The authors have no conflicts of interest that are directly relevant to the content of this article.
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Ludbrook, A., Petrie, D., McKenzie, L. et al. Tackling alcohol misuse. Appl Health Econ Health Policy 10, 51–63 (2012). https://doi.org/10.2165/11594840-000000000-00000
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DOI: https://doi.org/10.2165/11594840-000000000-00000