These estimates are based on the assumption of a steady release of nicotine with each puff
The US FDA statement noted that, Even with this action, these products are not safe nor FDA approved
British Journal of Addiction
Because tax-induced price increases result in quantity demanded decreases , the PED calculation generates a negative number, and is often reported as such in academic publications, but for simplicity in this post, well talk about everything in absolute value terms (all positive numbers)
"Lighter smoking is correctly perceived as less harmful than heavy smoking, but it still carries significant health risks," said Jason Oliver, Assistant Professor at Duke University in the US.
Campaign for Tobacco-Free Kids, Broken Promises to Our Children: a State-by-State Look at the 1998 State Tobacco Settlement 24 Years Later FY2023, 2023