Costly placebo works better than cheap one

A 10-cent pill doesn't kill pain as well as a $2.50 pill, even when they are identical placebos, according to a provocative study by Dan Ariely, a behavioral economist at Duke University.

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<p><a href="http://www.physorg.com/news123870443.html">Costly placebo works better than cheap one</a></p> <p>A 10-cent pill doesn't kill pain as well as a $2.50 pill, even when they are identical placebos, according to a provocative study by Dan Ariely, a behavioral economist at Duke University.</p>