The euro – the 'New' Coke of currencies?

The eurozone should have learned from Coca-Cola's mistake - if it aint broken, don't fix it. And when it's broken, get out of the fix, as quick as you can

The date 23 April 1985 was a momentous day in the life of the Coca-Cola corporation. For years, the company had been planning a new drink to see off the challenge from Pepsi. There was no expense spared for Project Kansas.

"New" Coke (as it was dubbed) bombed. The company responded with alacrity. It didn't say consumers were wrong. It didn't say that given time New Coke would be a success. It didn't plough on simply because it had invested heavily in Project Kansas. Instead, it recognised that there was only one option: to go back to the traditional formula. This returned to the shelves on 11 July 1985, within three months of "New" Coke's launch.

Related: Now a deal has been done, what lies ahead for the Greek economy?