The Impact of Cigarillo Warnings on Purchasing

Participants in each arm will participate in six mock shopping trips with a specified budget. They will purchase (mock) single cigarillos. The primary outcome is the average number of cigarillos purchased during each of the six mock shopping trips.

Participants will participate in six mock shopping trips with a specified budget. They will have the option to purchase (mock) tobacco products in addition to cigarillos: cigarettes, menthol cigarettes, e-cigarettes/vaping devices, oral nicotine. This outcome will be the sum mg of the number of combusted non-cigarillo tobacco products purchased during each of the six mock shopping trips

Participants will participate in six mock shopping trips with a specified budget. They will have the option to purchase (mock) tobacco products in addition to cigarillos: cigarettes, menthol cigarettes, e-cigarettes/vaping devices, oral nicotine. This outcome will be the sum mg of the number of non-combusted tobacco products purchased during each of the six mock shopping trips.

Number of cigarillos purchased at lowest price, averaged across the six shopping trips

Omax is the maximum amount spent on cigarillos across all shopping trips. Breakpoint is the price where no cigarillos were purchased. Pmax is the price where Omax occurs.

The rate of change for cigarillo demand is called Alpha, which is the rate constant of fitted Exponentiated Demand Equation. It is calculated with the Exponentiated Demand Equation, Q=Q0*10^k(e-αQ0C -1), where Q is the mg of nicotine purchased at a given price, Q0 is peak demand consumption or intensity (typically occurring at the lowest price), k is a constant across all compared conditions, and alpha (α) is the rate of change in demand or elasticity.

Three survey items to measure emotional reactions (anxious, scared, disgusted) to the cigarillo warning the participant saw. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing scores of the 4 items and dividing by 4 (range 1-5), with higher scores representing a higher amount of the construct.

The 1 item measure assesses the extent to which a participant reports the warning making them think about the risks of cigarillo smoking. Response options are on a 1 to 5 scale, with higher scores representing a higher amount of the construct.

Three survey items to measure participant's interest in quitting cigarillo smoking in the next month, likelihood of quitting smoking cigarillos in the month week, and plans to quit smoking cigarillos in the next month. Response options are on a 1 to 5 scale. Overall scale scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct/intentions to quit

one survey item asking participants if they noticed any health warnings on the cigarillo packages during their shopping tasks, with response options of Yes, No, and I'm not sure. Recall will be determine if participants select Yes.

One survey item asking participants to identify which warning they saw during their mock shopping trips. Participants will be shown their warning, a warning that wasn't in their ETM, and "I don't know" response options. Selecting the correct warning indicates warning recognition.

The 3-item UNC mean perceived message effectiveness scale assesses a participant's judgement of a warning's impact on their cigarillo beliefs and behavior. Response options are on a 1 to 5 scale. Overall scores are determined by summing the scores of the 3 items and dividing by 3 (range 1-5), with higher scores representing a higher amount of the construct

One survey item asking participants to what extent did they learn something new from the warning. Response options are on a 1 to 5 scale, with the higher number indicating more self-reported learning.

Participants will participate in six mock shopping trips with a specified budget. They will have the option to purchase (mock) tobacco products in addition to cigarillos: cigarettes, menthol cigarettes, e-cigarettes/vaping devices, oral nicotine, and two non-tobacco options: snack food and non-alcoholic beverage. This outcome will be the sum mg of the number of non- tobacco products purchased during each of the six mock shopping trips.