Kernrechtsfrage
Whether the respondent owed invalidity benefits under occupational pension insurance despite the incapacity having begun before the insured person joined the foundation.
Extrahierter Entscheid
No. The decisive incapacity that led to disability had already begun before the insured person entered the respondent's pension scheme, and no insurable residual work capacity existed at that time.
Extrahierte Begründung
Under Art. 23 BVG, the liable pension institution is the one with which the person was affiliated when the incapacity arose. The cantonal findings that the incapacity had existed since about 1991 were not manifestly incorrect and showed that the relevant risk had materialized before affiliation in 2000.