Sugary beverage taxation in South Africa: Household expenditure, demand system elasticities, and policy implications

This study applies demand system methods by combining expenditure survey data and sub-national price data to provide the first estimates of price and expenditure elasticities for categories of soft drinks that would be subject to South Africa's proposed sugary beverage tax. The results suggest that demand for these products is sufficiently price-elastic such that a significant reduction in consumption may result from a tax.
Source: Preventive Medicine - Category: International Medicine & Public Health Source Type: research