Prime Minister John Key says estimates his loyalty scheme to sweeten state assets sales for investors could cost the taxpayer hundred of millions of dollars are "farcical'' and has suggested a $60 million to $80 million bill instead.
Mr Key this confirmed that the loyalty bonus scheme for the Mighty River Power sale this year would be used as the model for part-sales of the other power companies to be partially privatised under his Government's "mixed-ownership model".
Mr Key indicated the scheme is likely to be in the form of extra shares for investors who hold their original stakes for three years. The scheme would be available only to retail or "mum and dad'' investors.
The scheme is likely to be similar to the one the Queensland Government used when it sold Queensland Rail in 2010. It offered Queenslanders one extra share for every 15 they held.
Treasury advice to Cabinet last year suggested the cost to the taxpayer of an incentive scheme to encourage New Zealand participation could be as much as 10 per cent or $500 million for a $5 billion asset sales programme - a figure which works out to about $112 for every man woman and child in New Zealand.