Elaine M. Liu, a Professor of Economics at University of Houston, visited the NCID to give as seminar entitled "Externalities of Marijuana Legalization: Marijuana Use in Non-Legalizing States".

The paper reveals that social media connections can impact marijuana use in states where it remains illegal. Researchers used data on Facebook friendships to investigate whether connections to states where recreational marijuana is legalized affect marijuana consumption in non-legal states.

The findings indicate that areas with more conn...