What's this about Iceland? Iceland does have a state-run pension system alongside mandatory occupational ones (the dominant form) and free individual ones, and as it happens, the system was a result of negotiations with trade unions: they got this system in exchange for accepting a delay in wage increases almost four decades ago, and trade union heads sit on the boards of the mandatory occupational funds.

Since this started with SNCF's special pensions regime, I am all ears why you think occupational segmentation of pension funds is bad in France but good in Iceland.

_{*Lunatic*, n.
One whose delusions are out of fashion.}