Where Uber and Amazon rule: welcome to the world of the platform

Powerful tech firms are altering not just the way we buy things, but could sweep away an entire economic modelHardly a day goes by without some tech company proclaiming that it wants to reinvent itself as a platform. Back in March, when South Korea banned Uber, the company promised to let local taxi drivers use its platform – along with its matching services.Facebook pulled a similar trick in early May: having run into trouble with its pseudo-humanitarian effort to provide free internet access