A randomized group of British citizens who had failed to pay their taxes were given letters suggesting they pay. These letters reminded them of the fact that their neighbors had paid, or what the taxes would be used for. Another group received reminders without any social pressure. Of the social pressure reminder group, 83% paid their debts, as opposed to 67.5% of the control group. This would result in an estimated 30 million euros of extra revenue if applied nationally.
Other Applications: Law Abiding Behavior