Are Decisions Based Only on Charts Better?

Posted on Sep 17, 2012 by George F Huhn

In some cases, the answer is “yes.” In a study of economists summarized in the HBR Blog Network entitled “Economists Are Overconfident. So Are You,” Justin Fox describes a study where economists were asked to make predictions based on analyzing numerical data alone, analyzing numerical data and scatter graphs, or analyzing just the scatter graphs. […]