You're more likely to find a narcissist in the C-suite than on the street, research suggests. That's because the traits that make narcissists so difficult to hang out with or date — including a constant need for validation, a willingness to control people, and a ruthlessness in getting their needs met — happen to make them super effective at rising up the ranks.

To help you figure out if you, or perhaps your boss, are a narcissist, we combed through the psychology literature looking for patterns of narcissistic behavior. We also spoke with Joseph Burgo, Ph.D., a psychologist and the author of "The Narcissist You Know." Here are common signs of narcissism.

Business success factors: Your Arrogance or Complacency
Author: Shana Lebowitz