Behavioral Economic Methods for Assessing Tobacco Product Abuse Liability: Study 7

Inclusion Criteria: * provide written informed consent, * be 18-65 years of age, * be an active smoker, * report smoking daily in the past month, * have stable self-reported mental and physical health, * be willing to try unventilated cigarettes or alternative nicotine products. * report that their usual brand of cigarettes features \>\~20% filter ventilation (i.e., "ultra light" and "light" varieties). Exclusion Criteria: * trying or have immediate plans to quit smoking, * currently using a prescription medication that might affect smoking or nicotine metabolism (e.g., varenicline, bupropion), * have plans to move away from the area, * report regular use of electronic cigarettes, nicotine replacement therapy, or other alternative tobacco products (e.g., chewing tobacco). * Females of childbearing age who report not having gone through menopause will be excluded from participating if they are pregnant (through urine screen at the time of consent) or lactating. * Participants who meet DSM criteria for other substance dependence will be evaluated for eligibility on a case by case basis.