The theory that men with low agreeability out-earn their nicer counterparts was proven in four different studies. People who perceive themselves to be less agreeable earned an average of 18% more than their more-agreeable coworkers.
In a recent report Do Nice Guys—and Gals—Really Finish Last? The Joint Effects of Sex and Agreeableness on Income, co-authored by Professor Timothy Judge of the University of Notre Dame, Assistant Professor Beth Livingston of Cornell University and Professor Charlice Hurst of the University of Western Ontario, found that in fact, the old catch phrase may be true.
Women, on the other hand, did not receive the same pay bump for being less agreeable. The effect of a woman being perceived as a "jerk" in the workplace had little-to-no effect on her pay, the study showed.
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