Kernrechtsfrage
Whether the insured's hypothetical work capacity without disability should be set at 100% rather than 80% under the mixed method.
Extrahierter Entscheid
The insured would most likely have worked 80% and done 20% household work; a full-time assumption was not established.
Extrahierte Begründung
The cantonal findings on the family's financial situation were not clearly wrong. The husband's post-retirement income did not make full-time employment mandatory, and new documents could not be considered as novelties under Art. 99(1) BGG.