Markets to dominate final week of campaign

The final week of a drawn-out election campaign will be conducted under the likely shadow of volatile financial markets generated by the UK's decision to leave the European Union.

Both sides of politics have emphasised the need for calm while outlining why they are better equipped to steer the economy through a time of uncertainty.

Prime Minister Malcolm Turnbull devoted a large chunk of his campaign launch speech in Sydney to emphasise now was not the time to change government.

"The last thing we need is a parliament in disarray," he said.

But Opposition Leader Bill Shorten believes the single biggest risk to the economy is a divided coalition government.

"Mr Turnbull says this is the time for stability, you cannot have stability without unity," he told Labor's second campaign launch in Brisbane.

Labor has released the costings of its election campaign promises, making the point it had done so much earlier than the coalition opposition in 2013.

However, the costings showed a Labor government would have deficits totalling $16.5 billion more than the coalition over the next four years.

But in 10 years budget surpluses would be bigger, a claim lampooned by Treasurer Scott Morrison who said Labor had confirmed it was a "triple-A threat" to Australia's triple-A credit rating.