In the UK, the three main political parties at Westminster have signed a pledge to devolve more power to Scotland if it rejects independence.
Scots vote on Thursday on whether to leave the UK and become an independent country.
The 'Yes' campaign, headed by the Scottish National Party, says new powers for Scotland can only be guaranteed with a vote for independence in Thursday's referendum.
Dr Alan Convery, politics lecturer from the University of Edinburgh, says the pledge from London may have come too late.
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Dr Alan Convery, politics lecturer from the University of Edinburgh, says the London-based political parties have found the campaign difficult.
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Dr Alan Convery, politics lecturer from the University of Edinburgh, says it has been healthy to see so many Scots engaging in the political process.
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