Coca-Cola: Wallet of Happiness Honesty Test

An honesty test on a crowded Lima street

As part of an experiment in a very crowded Lima district in Peru, Coca-Cola with their agency McCann Erickson deliberately left a wallet containing $100 on the street. With it they tested people’s honesty.

A $100 question, asked in public

The brilliance is how quickly the situation reads. Find the wallet. Notice the money. Decide what kind of person you want to be, with nobody asking you anything.

In social experiment storytelling, a simple moral trigger creates instant comprehension and invites viewers to project themselves into the decision.

Why you keep watching

You are not just judging strangers. You are quietly measuring yourself against what you hope you would do. That internal comparison is the engine of the film.

What the experiment is trying to reveal

People’s honesty, observed in a real public setting through a simple, high-stakes trigger.

What to borrow

  • Choose a mechanic that is universal and legible without narration.
  • Keep production minimal so human reaction stays central.
  • Let the audience do the interpreting. A good social test creates its own debate.

A few fast answers before you act

What did Coca-Cola do in Lima?

They left a wallet containing $100 on the street in a crowded district to test people’s honesty.

Where did this take place?

In a crowded district of Lima, Peru.

Who created the campaign?

The post credits Coca-Cola and McCann Erickson.

What was the point of the experiment?

To observe how people would react when they found a wallet with money in a real-world public setting.

American Rom Takeover

Romania’s Rom, manufactured by Kandia Dulce, is a traditional chocolate bar that all Romanians have grown up with. Wrapped in the national flag, it has an aging and nostalgic consumer base. However with the young generation Romanians it was losing ground as they preferred cool American brands.

To tackle the problem, McCann Erickson Bucharest came up with the ‘American Rom Takeover’ campaign. They challenged the young Romanian national ego by replacing Rom’s packaging with an American version. It was a very risky deception! But it was hugely successful and since then has won McCann Erickson the Grand Prix in the Promo & Activation Lions at Cannes International Festival of Creativity.

Burgeranch Combina: The HACK Campaign

Burgeranch is an Israeli fast food chain that launched a new burger deal called “combina” which basically means “outsmarting the system” with the burger deal and getting a whole lot more food for less money.

So McCann Erickson Israel came up with a pretty unusual kind of engagement campaign for Burgeranch. To launch the burger deal, they based the campaign on the “combina” path. The first part of the official campaign drove users to an online quiz that was impossible to answer correctly, meanwhile, clues were seeded on how to hack the quiz by changing certain details in the URL. Once word spread, the campaign took off and what seemed like a risky campaign strategy turned out to be a big success!