Atlanta, Georgia (CNN) -- Ask someone for the qualities of a good manager or leader and you're likely to get a laundry list of attributes -- all of them positive character traits.
Good communicator, inspirational, problem solver and cool under pressure are likely to be on anyone's short list.
But what about those other qualities? Let's call them the less attractive ones that often are a part of the package that makes up a successful manager.
Researchers at the University of Nebraska-Lincoln's College of Business Administration studied the development of leaders over a three-year period and found that negative, or "dark side" personality traits have their place too.
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