Planet Money
Originally published on Mon October 15, 2012 12:34 pm
For economists, prices are like magic. They send all kinds of signals about who wants what, and how badly they want it. Prices are what make markets work so well in so many settings.
But there are some things we don't want to put prices on. We don't pay organ donors. Children attend public high schools for free. Medical residents get paid a fixed stipend no matter where they do their hospital training.
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