Here’s an exercise you might find interesting: Ask your top-performing producers if they are first-born children.
Chances are, according to Thomas Connellan, author of "Bringing Out the Best in Others!" (Bard Press, 2003), most of them will say "yes."
First-borns make up about 35% of the general population, but in study after study they make up a vastly higher percentage of high achievers.
Of the first 23 astronauts, for example, 21 were firstborns, and more than half of U.S. presidents have been firstborns.
So does that mean you can blame their mothers?
