M. Sigman: How can groups make better decisions?

Recently we have introduced you all to the hierarchical voting model by Serge Galam. Now let us consider a very similar idea - what if before voting the people would discuss the issue in question in the small groups? Experiments conducted by social scientists Mariano Sigman and Dan Ariely seem to indicate that such procedure allows for crowds to become a bit wiser. Watch the following TED video in which Mariano Sigman describes both the concept and its implementation as experiment.