Social security is a means of inter-generational transfer. The only bread fit to eat is bread baked today: but why should today’s bakers feed the retired bakers of yesteryear? Why should we look after old people, who can no longer do anything for us?
... We feed the generations of our parents and grandparents in the expectation future generations will come along and do the same for us. ... One day, the world will end and the last generation of workers will have been cheated of their expectation of a peaceful retirement. ...
A brilliant analysis of the issues was provided half a century ago by Paul Samuelson, the great economist – an analysis that might have received wider attention had it not been written in mathematics and published under the uninviting title of “An exact consumption-loan model of interest with or without the social contrivance of money”.
The only individualistic solutions to the problem of ageing are to store bread to eat, or sell, when it is stale and you are old; or to take the opportunity when young to bribe younger people to look after you in your dotage. Samuelson showed these outcomes were inferior to the outcome of the social security contract for every generation except the one alive on judgment day.