The retirement-income package is divided into different components using the taxonomy from the indicator of the Architecture of national pension systems above. This framework divides pension systems into two mandatory tiers. The first is a redistributive part, designed to ensure pensioners achieve an absolute minimum standard of living. A savings part forms the second, with the aim of achieving a target income in retirement compared with earnings when working. This indicator, showing the division of national pension systems between these tiers and between public and private provision, again demonstrates substantial differences in national policies.