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Research Letter
July 8, 2019

Association of Marijuana Laws With Teen Marijuana Use: New Estimates From the Youth Risk Behavior Surveys

Author Affiliations
  • 1Department of Agricultural Economics and Economics, Montana State University, Bozeman
  • 2Department of Economics, University of Oregon, Eugene
  • 3Department of Economics, University of Colorado Denver, Denver
  • 4Department of Economics, San Diego State University, San Diego, California
JAMA Pediatr. 2019;173(9):879-881. doi:10.1001/jamapediatrics.2019.1720

In the United States, 33 states and the District of Columbia have passed medical marijuana laws (MMLs), while 10 states and the District of Columbia have legalized the recreational use of marijuana. Policy makers are particularly concerned that legalization for either medicinal or recreational purposes will encourage marijuana use among youth. Repeated marijuana use during adolescence may lead to long-lasting changes in brain function that adversely affect educational, professional, and social outcomes.1