Key legal question
Whether the revocation of the quarter invalidity pension was justified under revision rules because economic circumstances had changed.
Extracted holding
Yes. A change in the insured person's economic situation, due to adapted employment and higher actual earning capacity, justified revision even without a change in health.
Extracted reasoning
For insured persons in gainful employment, invalidity is determined by comparing hypothetical income without disability and income with disability. The adapted job was stable and reflected actual work performed, so actual earnings could be used.