We all know people who consistently display ethically, morally, and socially questionable behavior in everyday life. Personality psychologists refer to these characteristics among a subclinical population as “dark traits.” An understanding of dark traits have become increasingly popular not only in psychology, but also in criminology and behavioral economics.
Even though psychologists have studied various dark traits, it has become increasingly clear that these dark traits are related to each other. This raises the question: Is there a unifying theme among dark traits? (Source)
Study can be found here.