The denom­i­na­tion effect is the phe­nom­e­non whereby peo­ple spend coins faster than ban­knotes: it shows that we are more will­ing (there are fewer psy­cho­log­i­cal bar­ri­ers) to spend the same sum of money in coins than in ‘bills’.

It’s obvi­ous, but I like hav­ing these things ‘con­firmed’ and hav­ing a name to go with them.

Another exper­i­ment involved [NYU and Berke­ley Pro­fes­sor of Mar­ket­ing Priya Raghubir] standing out­side a gas sta­tion in Omaha. She would have peo­ple fill in a sur­vey about gas usage and then thanked them with either a $5 bill, five $1 bills or five $1 coins. Peo­ple went into the store, and when they came out Raghu­bir asked them for their receipts. The ones with coins spent the most, peo­ple with dol­lar bills a lit­tle less. And peo­ple with one $5 bill kept that one in their pockets.

Raghu­bir wanted to see whether that effect was par­tic­u­lar to Amer­i­can cul­ture, so they ran the exper­i­ment over­seas. Given a week’s salary in dif­fer­ent denom­i­na­tions, house­wives in China behaved the same way.

The arti­cle sug­gests that there may be a way to exploit this in order to “get con­sumers going again”–I won­der how this can be exploited online?