National leader Judith Collins will be hoping to shake off the woes of yesterday’s admission of a $4 billion hole in National’s books with the launch of their technology policy this morning.

Collins is announcing the policy in Auckland and will give a speech about it at 10.30am.

Collins will be joined by the party’s small business and manufacturing spokesman Andrew Bayly, as well Maungakiekie MP Denise Lee.

It is the first of many policies Collins will be announcing this week, as her party ramps up its campaign machine.

She teased the policy yesterday during her keynote speech at National’s campaign launch.

“In the days ahead I’ll announce policy that will do even more to springboard businesses out of these difficult times, further boosting long-term employment.”

The policy comes after National was yesterday forced to admit it had a $4 billion hole in its costings.

National had used the Treasury’s budget update to calculate that the party would “save” $19.1 billion by scrapping contributions to the NZ Super Fund.

But, National should have been using the Pre-Election Economic and Fiscal Update (Prefu) – which showed that the “saving” would have been $15 billion over 10 years.

National’s finance spokesman Paul Goldsmith admitted the mistake and apologised.

“We make mistakes from time to time,” he said, adding that “I never claimed to be perfect”.

“These things happen – they’re irritating, [but] we move on.”

But Collins played down the issue, dismissing it as “a little error”, “entirely inconsequential” and something “not many people are worried about”.

Labour’s finance spokesman Grant Robertson said the blunder raised questions as to what else might be wrong in National’s books.

“National has to be responsible for their mistake; it is a $4 billion mistake in their economic plan – they now have to answer the question of whether there are other errors in this plan.”