And there is virtually nothing on Japan (no Sony, no Toyota). Meanwhile, in the United States today the most valued companies are in the retail sector, either physical stores as with Walmart or online as with Amazon, or in software, with the likes of Google and Microsoft. Here America dominates, but no one knows for how long. In China the internet conglomerate Tencent, one of the largest corporations in the world – protected by the communist firewall – is supreme. Behind Tencent loom other Chinese internet giants such as JD.com and Alibaba. There is plenty for behemoths such as Facebook, Netflix and Google to worry about.