Figure 1. Illustration of control and ownership.
Left: The company 
owns portions of three other companies. The relative control over a company 
is proportional to the ownership share represented by the weight 
. The relative control value 
of 
partially inherits the value 
of the owned company 
. In this way, indirect control is included. Right: The control weights 
are themselves distributed in a manner which is proportional to the overall relative control of the corresponding controlling company, such that more important companies tend to have bigger shares.