Geneva: Why the world's highest minimum wage was needed

Geneva is a very wealthy place. Home to a huge private banking sector, the United Nations, and auction houses Sotheby's and Christie's, which regularly sell enormous gemstones for eye-watering prices.

And this month it is introducing the highest minimum monthly salary in the world, in response to a referendum at the end of September.

The new hourly rate of 23 Swiss francs - equivalent to £19, $25 or €22 - will give a minimum monthly salary of 4,000 francs (£3,350).