Sir John Key doubts asset sales would achieve much.
The former Prime Minister says cutting bureaucracy and allowing better foreign investment would have more of an impact.
National says it may campaign on state-owned asset sales next election, a policy New Zealand First is dead against, while ACT's floating privatisation of health and education.
Key told Mike Hosking people are opposed because of what he thinks is ideological mumbo jumbo.
He says they just want to say everything is fantastic when its run by the state and you can't trust the private sector, but most things are done by the private sector already.
Sir John Key says there's nothing much left to sell, anyway.
LISTEN ABOVE

Mike's Minute: What does government help look like?
02:00

Phil Rosenthal: Creator and Producer of 'Somebody Feed Phil' on the show, his career, liveshows in NZ and Australia
11:21

Sajad Bassam: Capstone & Marsden Group Merger CEO on the decision to combine the two groups
02:21