Figure 2. Differences in the Associations of Cigarette Prices and Tobacco Control Policies According to Sex, Socioeconomic Status, and Period Before vs After Law 20105.

A, Differences in the association between cigarette prices and smoking onset. Own-price elasticity is a measure of the responsiveness of the demand for a good to a change in its own price; more precisely, it represents the percentage change in quantity demanded in response to a 1% change in price. B, Differences in the association between Law 20105 and smoking onset.