The study suggested, however, that personal attributes play no part here as the overall level of honesty demonstrated in both experiments was high.
"The fact that the financial incentive to lie was outweighed by the perceived cost of lying shows just how honest most people are when they are in their own homes," Dr Johannes Abeler, from the Department of Economics at the University of Oxford, said in a statement.
"One theory is that being honest is at the very core of how we want to perceive ourselves and is very important to our sense of self identity. Why it is so important? It may be to do with the social norms we have been given about what is right and wrong from the moment we could walk and talk," Abeler said.