Fig. 4From: Youth smoking and anti-smoking policies in North Dakota: a system dynamics simulation studyPolicy simulations for policy tests for: increases in the excise tax per pack of cigarettes (a); increasing per-capita funding for comprehensive tobacco control programs (b); increasing retailer compliance with sales laws (c); policies A – C implemented together (d). Line type indicates the policy, with 1 (solid line) representing the base case simulation in all panels. Y-axis shows the current (past-30 day) smoking rate, averaged across middle school and high school studentsBack to article page