They found the widest gap in entitlement, suggesting that men are more likely than women to exploit others and feel entitled to certain privileges.
The second largest difference was in leadership/authority. "Compared with women, men exhibit more assertiveness and desire for power," Grijalva says. "But there was no difference in the exhibitionism aspect, meaning both genders are equally likely to display vanity or self-absorption."
In addition, the study looked at data from college students between 1990 and 2013, and found no evidence that either gender has become more narcissistic over time.
Emily Grijalva, Daniel A. Newman, Louis Tay, M. Brent Donnellan, P. D. Harms, Richard W. Robins, Taiyi Yan. Gender differences in narcissism: A meta-analytic review.. Psychological Bulletin, 2015; 141 (2): 261 DOI: 10.1037/a0038231