The AP reports:
Kathleen Vohs, assistant professor of marketing at the University of Minnesota, and colleagues, conducted a series of nine experiments in which people were asked to do puzzles or other tasks and the behavior of people exposed to money was compared to others who were not prompted to think about it.
The two groups acted differently, the researchers report in Friday’s issue of the journal Science.
“The mere presence of money changes people,” Vohs said. “The effect can be negative, it can be positive. Exposure to money, or the concept of money, elevates a sense of self-sufficiency,” and can make people less social.