Key legal question
Whether the denial of an invalidity pension was unlawful despite the medical finding of 20% performance loss in the insured's former job.
Extracted holding
No. The established residual work capacity did not justify entitlement to a disability pension.
Extracted reasoning
The cantonal findings based on the psychiatric expert report were binding; no violation of the duty to investigate was shown, and no further somatic examinations were required. With only a 20% reduction in performance in the usual occupation, the conditions for a pension were not met.