[#item_full_content] A new study from the University of Iowa suggests businesses do better in states that legalize medicinal marijuana. Professor Tong Yao says it’s not likely the result of offices full of potheads helping their employers be more productive. Mr. Yao, a professor of finance, said legalizing medical marijuana instead sends a signal about the state’s 
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Study: Businesses perform better in states that legalize medical marijuana
ByPot Shop News
July 29, 2026