biostudies-literatureFreitas-Lemos RNational Cancer InstituteNCI NIH HHSNational Institutes of Health1744-1753https://www.ebi.ac.uk/biostudies/studies/S-EPMC8403238biostudies-literatureUnknown23(10)<h4>Objectives</h4>Banning vaping products may have unintended outcomes, such as increased demand for illegal products. This study experimentally examined the effects of a vaping ban and a flavored vaping ban on the probability of purchasing illicit vaping products, and factors affecting purchasing from a hypothetical illegal marketplace.<h4>Methods</h4>A crowdsourced sample of exclusive cigarette smokers, exclusive e-cigarette users, and frequent dual users (n = 150) completed hypothetical purchasing trials in an Experimental Tobacco Marketplace under three conditions (no ban, vaping ban, and flavored vaping ban). Participants chose to purchase in a hypothetical legal experimental tobacco marketplace (LETM) or illegal experimental tobacco marketplace (IETM). Vaping products were availableNicotine & tobacco research : official journal of the Society for Research on Nicotine and TobaccoThe Illegal Experimental Tobacco Marketplace I: Effects of Vaping Product Bans.PMC84032385P01CA200512P01 CA200512Heckman BWFreitas-Lemos RStein JSTegge ANKaplan BACummings KMBickel WKfalseThe Illegal Experimental Tobacco Marketplace I: Effects of Vaping Product Bans.<h4>Objectives</h4>Banning vaping products may have unintended outcomes, such as increased demand for illegal products. This study experimentally examined the effects of a vaping ban and a flavored vaping ban on the probability of purchasing illicit vaping products, and factors affecting purchasing from a hypothetical illegal marketplace.<h4>Methods</h4>A crowdsourced sample of exclusive cigarette smokers, exclusive e-cigarette users, and frequent dual users (n = 150) completed hypothetical purchasing trials in an Experimental Tobacco Marketplace under three conditions (no ban, vaping ban, and flavored vaping ban). Participants chose to purchase in a hypothetical legal experimental tobacco marketplace (LETM) or illegal experimental tobacco marketplace (IETM). Vaping products were available2021-01-01T00:00:00Z2021 Aug2025-04-05T14:05:32.323Z2025-04-05T14:05:32.323ZS-EPMC84032383395547810.1093/ntr/ntab088