In the Angry Blueberries study from chapter 1, we also allowed for borrowing. And we found that the blueberry-poor subjects—facing no time pressure—borrowed more blueberries and were hurt by the ability to borrow. Focus again played a role: those who took more time on each shot were more likely to borrow: the more engaged, the more they borrowed. We have tried this in many such games, and the results are consistent: scarcity, in whatever form, always leads to borrowing.
