No more no frills: Europe's budget carriers cash in on small comforts
They changed the face of flying in Europe. Thirty years ago, Ireland's Ryanair took off with a promise of cheaper air travail, open to all. Ten years later, they were joined in the market by their now arch-rival Easyjet, which has just turned 20. After decades of offering no frills, both airlines have tweaked their business models to introduce more comfort for their customers.
Also in this programme, we look at how companies can turn "likes" into profits. It's one of the major challenges that all social networks face as they develop: how to introduce advertising without alienating their users.
Plus, there is something new happening below the surface of the Paris business district known as La Defense. As the economy recovers, there has been an increase in the demand for office space, which has led to developers looking underground for new opportunities.