What are the limits of economies of scope?
Amazon is launching its first high-tech hair salon, as the online retailer makes a surprise move into the beauty sector.
The salon, in Spitalfields, east London, will have an augmented-reality mirror showing clients different colours and styles before treatments.
The venue will also have magazines loaded on to tablets, for browsing.
Traditional services including cuts, blow-dries and colour treatments will also be available.
Here is the full story, via Michelle Dawson.