Greeks bearing grub

To dine ala Hayek;

For Zachou, the extra money she makes from Cookisto, about 200 euros (£168) a month, goes towards the supermarket shop.

"It's not all about the money," she says. "I feel we are pulling together in the crisis. Many students are struggling to make ends meet. I've been there… fed up of eating bread and takeaways. It's nice I can provide them with food their mothers would cook and for very little."

It's all part of what Sydney-based innovation consultant Rachel Botsman calls the "revolution" of collaborative consumption, or the sharing economy. Since the global financial meltdown, "people have reverted to old market behaviours that involve trust - swapping, sharing, renting, bartering", she says.

Using the very specific knowledge available only to the participants. Someone should write a scholarly paper...Oh, wait....