I’m hoping that a parallel discussion in English starts here.
Here an excerpt of the paper to whet your appetite:
… nearly 4/10 of the control over the economic value of transnational corporations in the world is held, via a complicated web of ownership relations, by a group of 147 transnational corporations in the core, which has almost full control over itself. The top holders within the core can thus be thought of as an economic “super-entity” in the global network of corporations. A relevant additional fact at this point is that 3/4 of the core are financial intermediaries.