Cigarette and e-liquid demand and substitution in e-cigarette-naïve smokers
Jeffrey S Stein1, Mikhail N Koffarnus1, Irina Stepanov2
1Addiction Recovery Research Center, Virginia Tech Carilion Research Institute.
Experimental and Clinical Psychopharmacology
|June 5, 2018
Summary
Cigarette smokers transitioning to e-cigarettes show lower initial demand for e-liquid compared to traditional cigarettes. E-cigarettes partially substitute for cigarettes, but not vice versa, indicating a preference for tobacco products.
Area of Science:
- Behavioral economics
- Tobacco regulatory science
- Addiction research
Background:
- Behavioral economic methods enable price manipulation studies on tobacco product purchasing.
- These methods can assess tobacco product abuse liability and model price regulation effects.
Purpose of the Study:
- To examine behavioral economic demand for cigarettes and e-liquid in e-cigarette-naïve smokers.
- To compare demand, substitution, and user liking between cigarettes and e-cigarettes.
Main Methods:
- Twenty-five cigarette smokers participated in experimental sessions purchasing cigarettes and/or e-liquid with simulated income.
- Participants completed self-report measures of drug effects and liking.
- Demand, substitution, and liking were assessed under different product availability conditions.
Main Results:
- Lower demand for e-liquid than for cigarettes was observed when products were available alone, an effect magnified when concurrently available.
- E-liquid acted as a partial substitute for cigarettes, but cigarettes did not substitute for e-liquid.
- Participants rated e-liquid less favorably than cigarettes on measures of effects, liking, desire, and probability of continued use.
Conclusions:
- E-cigarette-naïve smokers value cigarettes more than e-liquid, but still purchase e-liquid frequently.
- E-liquid can serve as a substitute for cigarettes, suggesting potential for reduced cigarette consumption.
- Future research should investigate the duration of e-liquid exposure to understand transitions in tobacco product use.
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