Observed retail price of Australia's market-leading cigarette brand before and up to 3 years after the implementation of plain packaging

Objective: Despite claims by tobacco companies that plain packaging would lead to lower cigarette prices, recommended and observed real cigarette prices in Australia rose in the 9-11 months after plain packaging was introduced. However, little is known about trends in prices longer term. In this report, we assess whether inflation (Consumer Price Index; CPI) and tax adjusted (€CPI-tax-adjusted') prices of the market-leading Australian cigarette brand changed in the 3-year period after plain packaging, and whether price changes were associated with retailer characteristics. Method: Cigarette prices were ascertained from a panel of tobacco retailers at three time points: (1) in November 2012 (n=857) (before full implementation of plain packaging, compulsory in retail outlets from December 2012), (2) between October 2014 and February 2015 (n=789) and (3) between November 2015 and March 2016 (n=579). Generalised estimating equations were used to estimate percentage change in mean CPI/tax-adjusted cigarette prices over time. Results: CPI/tax-adjusted adjusted mean stick prices rose by 13.7% (95% CI 13.0 to 16.0) and 15.2% (95% CI 14.3 to 16.0) at 2.1 and 3.1 years after plain packaging was introduced, respectively. Increases in mean CPI/tax-adjusted stick prices varied by outlet type (p<0.001), socioeconomic status (p=0.013) and remoteness of retailer's area (p=0.028) and whether twin packs were sold (p=0.009). Conclusions: Contrary to tobacco company predictions of a fall in prices, the price of the market-leading Australian cigarette brand increased significantly in the 3 years after plain packaging was introduced, and these increases were above the combined effects of inflation and increases in excise/customs duty.