Election fever is upon us and not a night goes by without one party stating something and then another party stating that it is wrong.

There’s also this business about each party saying that another’s policies are ‘uncosted’. Even if it is costed, it doesn’t mean it is right. Take, for example, the recent policy proposal to extend Right to Buy to tenants of social housing provided by Registered Social Landlords (RSLs).

This policy has been costed, and we know that if councils have to sell off their most valuable housing assets when they become vacant and if this value then passes to the RSLs, that the maths could work.