As first reported on BBC World news Business Daily, If someone gives us a $100 dollar bill, for example, that should be no better and no worse than if they give us five $20 notes.
Except that, our brains seem to tell us that it is different. Whatever your currency, if you have a 100 note, apparently you are less likely to spend than if you have five 20s.
And all this matters as governments work out how to get us to spend out of recession.
Steve Evans talked to Professor Priya Raghubir, professor of marketing at Stern School of Business, New York Universit.
Links
[BBC World News]
[BBC World New Business]