Policy on pensions and old-age social insurance has shifted profoundly in response to the aging of the population. Constructed in stages in 1910, 1930, and 1945, old-age social insurance was first affected by the reformulation of its basic principles set out in the Laroque report of 1961. The realization of the importance of aging following the baby boom and continually increasing life expectancy was reflected in the “rejuvenation” of the elderly. This took place in the 1980s and after. The 1993 reforms and those which followed them, while incomplete, tried to ensure the sustainability of the system, dependent either on levies on the production of goods, or on the creation of services by the economically active.