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Relationship between the price of cigarettes and estimated likelihood of attempting smoking cessation from US$0 to US$10/cigarette. (A) Presents the overall curve reflecting the relationship between price/pack and estimated smoking cessation attempt likelihood. Prices per pack are presented on the x axis, with zero price replaced with $0.01 to permit logarithmic coordinates. (B) Presents changes in probability across prices. In both panels, text boxes illustrate ‘left-digit’ effects.
