Key legal question
Whether the disputed participation must be allocated for capital tax to the Zurich headquarters or to Schwyz branch establishments.
Extracted holding
The participation must be allocated to the Zurich headquarters; no exclusive use by the Schwyz establishments was shown.
Extracted reasoning
The Federal Court adhered to its established, schematic rule that utility-company participations are attributed to the head office for capital tax unless they serve a specific establishment exclusively; practicability considerations justify this approach.