Pensions may be provided for in a modern society by several methods, viz., voluntary individual savings, mandatory … individual savings, that the fully funded occupational system is decided upon by the age cohort of the median worker and that … decisions is a Pareto-equilibrium. Nowadays most of capital supply stems from individual and institutionalised pension savings …

(depending on the degree of risk aversion). It is only for the case where all savings are invested into accumulable, productive …