Evaluating South Africa's tobacco control policy using a synthetic control method

Area of Science:

• Public Health
• Health Economics
• Tobacco Control Policy

Background:

• South Africa implemented significant tobacco control measures, including excise tax increases and smoking bans, between 1994 and 2004.
• These policies led to a 46% decrease in per capita cigarette consumption.
• Previous evaluations lacked a counterfactual to assess policy impact.

Purpose of the Study:

• To establish a counterfactual scenario for cigarette consumption without tobacco control measures.
• To quantify the impact of tax-led tobacco control policies on per capita cigarette consumption in South Africa.

Main Methods:

• Utilized a synthetic control method to construct a counterfactual South Africa.
• Employed a 'donor pool' of countries without similar tobacco control policies (1990-2004).

Main Results:

• Per capita cigarette consumption would not have declined without the implemented tax-led measures.
• By 2004, consumption was 36% lower than the counterfactual, primarily due to tax increases.
• Findings remained robust across different donor pool specifications.

Conclusions:

• Consistent increases in real cigarette excise taxes yield substantial public health benefits.
• Tobacco tax policies are an effective tool for reducing per capita cigarette consumption.