traffic accidents

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Large, heavy vehicles are safe, as everyone knows. If you’re going to be in an accident, would you rather be in a Miata or an Escalade? More large vehicles on the road make us safer, and we should worry about anything which reduces vehicle sizes. Notably, fuel economy standards decrease vehicle size, so we will become less safe as fuel economy standards become more strict. See for example Crandall and Graham (1989).

Or so conventional wisdom goes, but it turns out the truth is more subtle, according to recent research.

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Do reductions in enforcement of marijuana prohibition lead to more traffic accidents?

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