using a lab-in-the-field experiment. We find that those groups that observe each other show lower within group standard …

-of-sales expenditures. We are particularly interested in the effect of a behavioural experiment, eliciting respondents’ risk preferences, on … their recording behaviour. In the experiment, run shortly before the consumers start to fill in the diary, the consumers … literature on incentives. For participants who roll the die, the experiment can be seen as a tool to randomly assign an incentive …

deviation (in beliefs, utility, or perceived prices) is within e of expected utility theory. The number e can then be used as a … distance to the theory. We apply our methodology to three recent large-scale experiments. Many subjects in those experiments …