This is because the legal standard requires a manufacturer to demonstrate that the new product is appropriate for the protection of the public health. This public health standard requires assessing the products impact on the population as a whole, including the impact the new product will have on the likelihood that people will stop using tobacco products (cessation), as well as start using them (initiation)
In addition, controlling for several theoretically relevant cultural dimensions (i.e., individualism-collectivism, relational mobility, tightness) and demographic variables (i.e., age, gender) did not meaningfully alter the results (see Supplementary Information )
The full letter is unpublished
Additionally, online shopping facilitates easy comparison of different products in terms of price, strength, and flavor, allowing buyers to make informed decisions from the comfort of their own homes