This chapter examines the impact of cigarette prices, taxes, and tobacco control policies on youth and young adult smoking propensity and intensity in the US during the years 1997�2001, a period characterized by significant changes in cigarette prices and tobacco control policies. Employing a fixed effects technique, we find a strong negative impact of cigarette prices and taxes on youth and young adult smoking prevalence and conditional demand. Moreover, we find purchase, use, and possession laws to be inversely related to youth and young adult smoking prevalence.