Participants who report using cigarettes/e-cigarettes will complete a Qualtrics survey consisting of various decision-making tasks, novel hypothetical nicotine product demand tasks, and Experimental Tobacco Marketplace scenarios (ETM). There will be three total ETM scenarios, cigarette adjusting price, e-cigarette adjusting price, and both e-cigarette and cigarette adjusting price.

Participants who do not report using cigarettes/e-cigarettes will complete will complete a Qualtrics survey consisting of various decision-making tasks, and novel hypothetical nicotine product demand tasks

This study will have three different scenarios in the Experimental Tobacco Marketplace (ETM) for participants who reported being cigarette and/or e-cigarette users. These will consist of hypothetical purchase scenarios where a variety of different tobacco products are available to purchase. The three ETM scenarios will be adjusting price cigarettes, adjusting price e-cigarettes, and both adjusting price cigarettes and e-cigarettes.

Likelihood to purchase and consume hypothetical nicotine products and sensitivity to cost of different product categories, flavors, and nicotine combinations will be assessed in all groups. Hypothetical demand will be assessed using non-linear mixed-effects modeling to obtain estimates of demand intensity and price sensitivity for these hypothetical products. Higher intensity and lower price sensitivity are indicators for higher subjective value and likelihood to try these novel products.

Cigarette and e-cigarette users will complete different experimental tobacco marketplace scenarios. Alternative product purchasing (substitution) for different nicotine products as a function of increasing price of cigarettes/e-cigarettes will be measured with non-linear mixed-effects cross-commodity demand equations that determine the magnitude and direction of product substitution as a function of price increases of cigarettes and/or e-cigarettes. A higher magnitude indicates a larger change in product purchasing as a function of the ascending price item, where direction determines if the commodity was a complement to or substitute of the ascending price item(s). In the case of failures of non-linear model fitting, linear models will be used to determine product substitution based on intercept (initial purchasing) and slope (degree of substitution).