Resumo

VAN WALBEEK, C  e  CHELWA, G. The case for minimum unit prices on alcohol in South Africa. SAMJ, S. Afr. med. j. [online]. 2021, vol.111, n.7, pp.680-684. ISSN 2078-5135.  http://dx.doi.org/10.7196/samj.2021.v111i7.15430.

BACKGROUND: Although only about a third of South African (SA) adults indicate that they consume alcohol, heavy drinking is common. As a result, society carries large alcohol-related mortality and economic burdensOBJECTIVES: To investigate the feasibility of a minimum unit price (MUP) on alcohol, aimed at reducing the prevalence of heavy drinkingMETHODS: The study calculates unit values, defined as total monthly alcohol expenditure per household, divided by the household's total monthly alcohol consumption, for four categories of drinking households (moderate, intermediate, occasional heavy and regular heavy), using wave 4 data (2015) from the National Income Dynamics Study. A cumulative distribution of the unit values is derived for each of the four categories of drinking households. A number of hypothetical MUPs are imposed, and the impact of these MUPs on the consumption of the different categories of drinking households is estimated, taking cognisance of the fact that these households respond differently to price changes. Moderately drinking households tend to be more price sensitive than regular heavy-drinking householdsRESULTS: Occasional and regular heavy-drinking households comprise a quarter of all households (and half of all drinking households) in SA, but consume 84% of all alcohol consumed in the country. There are large differences in the calculated average price of alcohol between different categories of drinking households, ranging from ZAR12.00 per standard drink among moderately drinking households to ZAR1.53 per standard drink among regular heavy-drinking households. An MUP of ZAR3.00 (alternatively ZAR10.00) per standard drink is estimated to reduce alcohol consumption by 11.9% (21.8%) among regular heavy-drinking households, by 3.1% (11.6%) among occasional heavy-drinking households, by 2.3% (15.9%) among intermediate-drinking households and by 0.3% (6.1%) among moderately drinking householdsCONCLUSIONS: An MUP on alcohol is not a silver bullet, but could have a significant impact on reducing the consumption of alcohol among regular heavy-drinking households, and to a lesser extent among occasional heavy-drinking and intermediate-drinking households. The government should strongly consider implementing such a policy

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