A study from the ETH Zürich (Switzerland) has shown 2011 that 147 companies rule the world and it all ends up with roths.

It is in german, but you can download a pdf called The network of global corporate control

https:// www.fit4russland.com/wirtschaft/1524-eth-zuerich-studie-147-konzerne-kontrollieren-die-ganze-wirtschaft

And TOP 50 list