“When people develop rules themselves and base them on values that matter to them, they also feel a greater sense of ownership over their rules. People are more likely to use rules devised by themselves, reflecting their own values, rather than those imposed on them by someone else. Moreover, when people invest the time to reflect on their experience and codify it into rules, they typically do so to achieve some goal that matters deeply to them, like producing a winning comedy show or successfully raising a child. If they believe the rules will help them to do a better job on something that really matters, they will use them.”