Via Association for Psychological Science:

After analyzing several large datasets, Emory University professor Emily Bianchi found that people who entered adulthood during hard economic times are actually less narcissistic later in life than those who came of age during more prosperous times. Among her results, published in Psychological Science, was the finding that “CEOs who came of age in economic downturns paid themselves relatively less than those who entered adulthood in more prosperous times.”