'Invisible hand' guides evolution of cooperative turn-taking, research shows

It's not just good manners to wait your turn -- it's actually down to evolution, according to new research by University of Leicester psychologists.

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<p><a href="http://www.physorg.com/news166337233.html">'Invisible hand' guides evolution of cooperative turn-taking, research shows</a></p> <p>It's not just good manners to wait your turn -- it's actually down to evolution, according to new research by University of Leicester psychologists.</p>