Many people lie about their income. And regardless of wether an income is high or low, people who excel at the tasks are more inclined to conceal their real wage. During experiments dedicated to that question, researches came to the conclusion that there is a specific type of highly productive employees who are prone to cheating. Presenting an article «Who Cheats: Experimental Evidence from the Lab», the professor of University of Oxford Raymond M. Duch spoke about this interesting result in more detail.