Lawmakers were set to back First Minister Nicola Sturgeon's call for a second referendum when they vote following a two-day debate in the semi-autonomous assembly in Edinburgh.
British Prime Minister Theresa May has suggested she will rebuff Sturgeon's demand for a referendum re-match before Britain leaves the European Union.
May insists "now is not the time" while she spends the next two years striving to secure a good deal on Brexit, once the EU Lisbon Treaty's Article 50 departure process is triggered on March 29.
Today, Strathclyde University's Fraser of Allander Institute warned both sides that their ongoing squabbles were hammering Scotland's economy.
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"The Scottish economy has now been stuck in a low-growth cycle for nearly two years," the think-tank said.
"With the triggering of Article 50, and plans for a further independence referendum, the Scottish economy's resilience is likely to be further tested over the next year."
Institute director Graeme Roy called on both the Scottish and UK governments to "provide clarity and reassurance" over independence and Brexit respectively.
Former Bank of England governor Mervyn King warned independence "would be expensive" for Scotland.
King, who headed Britain's central bank between 2003 and 2013, told the BBC that Scotland "certainly" could be independent, but "it would be a challenge to borrow on the international market if Scotland decided to run a large budget deficit".
As leader of the governing, pro-secession Scottish National Party (SNP), Sturgeon has been a champion of independence although she needs the green light from London for a legally-binding referendum.
Scotland rejected independence in 2014, although the SNP argues Britain's decision last June to leave the EU warrants a fresh referendum as a majority in Scotland voted for Britain to remain within the bloc.