Originally posted on Dan Ariely:
When a friend sent me this paper the other day, I admit that I took a long hard look at myself and my economist friends. According to this study, economists, it seems, are worse than most when it comes to truth telling. This discovery was made by researchers Raúl López-Pérez and Eli Spiegelman, who wanted to examine whether certain characteristics (for instance religiosity or gender) made people averse to lying. They measured the preference for honesty by canceling out other motivations, such as altruism or fear of getting caught.
The way they accomplished this was with a very simple experiment where a pair of participants acted as sender and receiver of information. The sender would sit alone in front of a screen that showed either a blue or green circle. He or she would then communicate the circle’s color to the receiver, who could not see the color or the sender. Senders received 15 Euros every time they indicated a green circle, and only 14 when they communicated that the circle was blue. Receivers earned an even 10 euros regardless of the color, and so were unaffected by either the truthfulness or dishonesty of the senders.
So senders had four strategies: