The state-by-state rollout of legalized weed has given economists a perfect natural experiment to measure its effects. Here’s what we know so far — and don’t know — about the costs and benefits of legalization.
To find out more, check out the podcasts from which this hour was drawn: “Let’s Be Blunt: Marijuana Is a Boon for Older Workers” and No Stupid Question’s “Are Humans Smarter or Stupider Than We Used to Be?”
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