New analysis from the Scottish government claims the country could be £5bn a year better off by 2029 if it becomes independent from the UK.
The Outlook for Scotland's Public Finances says Scotland would start life as in independent nation with "strong and sustainable" finances - contrary to what has been claimed by British Government minister.
The document also claims that a lowering in Scotland's debt would enable a future government to push ahead with a savings fund for the country's oil revenue.
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The attack took place on Monday.
Political machinations make the front pages of many Saturday papers.
The party leader will take a sideswipe at Labour MPs now sitting alongside former Tories who backed austerity.