Facts
[Z.] , born in 1964, applied for IV benefits in March 2006. The IV-Stelle Schwyz (Disability Insurance Office of the Canton of Schwyz) clarified the health and employment conditions and had the insured person examined by, among others, a rheumatologist and a psychiatrist. By decision of August 26, 2008, the IV-Stelle denied a pension claim. [Z.] 's appeal against this decision was dismissed by the Administrative Court of the Canton of Schwyz in a decision dated March 5, 2009.Considerations
The Federal Supreme Court upheld the decision of the Administrative Court. It concluded that the lower instance neither violated the principle of investigation nor the rules of evidence evaluation by determining the ability to work differently from the expert opinion of the Institute [X.] of April 18, 2008, based on the report of the Regional Medical Service (RAD) of June 30, 2008. The statement of the RAD meets the legal requirements for medical reports. In a critical examination of the expert opinion of the Institute [X.] , it is comprehensibly explained why the existing findings are not plausible to justify a temporal limitation of the performance capacity in a suitable…