Their results are startling. ... They have even created a list of global powerbrokers, the companies that are influential in the most stock markets around the

Their results are startling. ... They have even created a list of global powerbrokers, the companies that are influential in the most stock markets around the world. Here is the top 10 ... What it suggests is that the stability of the complex networks that make up our economy is hugely dependent on the ongoing survival of just a handful of companies. I may be missing something, but it sounds like they are alerting us to the dangerously small number of companies you'll find in a top-ten list.