A Marginal Revolution Book of the Year “Brings the groundbreaking research of the top developmental psychologists of the past quarter-century to a wider audience…A masterpiece!”—Dante Cicchetti, Institute for Child Development at the University of Minnesota “Deliver[s] a flood of insights around the book’s central question: To what degree do our childhood personalities and behaviors predict our adult selves?”—Wall Street Journal “One of the best and most important works of the last few years…Fascinating.”—Tyler Cowen, Marginal Revolution Does childhood temperament...