Independence will create a 'border effect', reducing the flow of trade between Scotland and the rest of the UK, according to a new report by Scottish Labour.
The briefing paper claims trade will be 83% lower after 30 years in the event of independence.
Shadow Scottish Secretary Margaret Curran highlighted the so-called 'border effect' during a trip to a Lockerbie factory this afternoon, Thursday 17 July.
The Yes campaign claim the paper is based on out-of-date data that is irrelevant to Scotland.
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