Bologna-based 35-year-old Valentina, with a degree in viola at the conservatory, is often travelling both for work as a musician and for passion. “To save money, but mainly to feel at home” for many years she has been using airbnb, the international giant renting out temporary living spaces via public advertisements published on their portal: a rampant symbol of the sharing economy, the barter economy, of the loan of goods, services and talents through the use of digital platforms and apps that foster peer-to-peer intersection between supply and demand. Last time Valentina used airbnb dates back to early January, in Istanbul, in a flat with all mod cons in the historical/monumental area which she shared with two girlfriends for as little as €12 per person per day. Gioia...