Loading metrics Open Access Peer-reviewed Research Article Citation: Phyo PP, Walker N, Ao BT, Sbai E, Bullen C (2026) Economic and econometric methods to measure the illicit tobacco trade: A scoping review. PLOS Glob Public Health 6(3): e0006118. https://doi.org/10.1371/journal.pgph.0006118 Editor: Shashika Bandara, McGill University, CANADA Received: December 19, 2024; Accepted: February 25, 2026; Published: March 23, 2026 Copyright: © 2026 Phyo et al.