Abstract
This paper investigates the potential links between cannabis legalization and the use of other substances in the United States. In particular, it tests for changes in the prevalence of tobacco and alcohol use following cannabis legalization (Medical or recreational). This study is carried out on all 50 American states using a difference-in-differences estimator with data running from 2012 to 2018. It finds a significant decrease in tobacco use as a result of cannabis legalization. However, no statistically significant change in trend is observed in the prevalence of alcohol use following cannabis legalization.
Published Version
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