NPR's Marketplace has had a feature this past week where they have talked to economists about some lighter topics. A couple might be interesting to principles students, particularly Justin Wolfers talking about the opportunity costs of exercise and Betsey Stevenson talking about searching for a mate. Friday's segment with Paul Kedrosky is a good example of how economists think (and how we can't really turn off that mode of thinking, even when we're doing pretty mundane stuff).
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