Price indices in contracts

Consumer price indices and indices of retail prices are often used as reference values in stable-value clauses of tenancy, lease, delivery, pension and other agreements on continuous payments. Such arrangements are to ensure that the creditor will continue to receive an amount which in value terms corresponds to the financial amount initially settled for. If payments effected over longer periods are protected against inflation in this manner, one speaks of stable-value clauses.
Among the price indices calculated by the Federal Statistical Office, those serving as reference values for stable-value clauses primarily are consumer price indices and indices of retail prices.

Stable value based on the consumer price index

Changeover from discontinued indices to the consumer price index