The island has had multiple referendums over its political status, but the statehood question still provokes fierce debate.
"Certainly the banks relocating from Scotland is a real possibility in a Quebecois scenario" where multiple referendums are held, UBS economist Paul Donovan told Bloomberg.
"We should focus on how to make the most of this, not pursue a parliamentary process for a multiple choice referendum," he said.
"We should focus on how to make the most of this, not pursue a parliamentary process for a multiple choice referendum... every country can wield a veto until its needs are met".
Unless Britain had a multiple-choice referendum or two referendums, the people would not have made clear which of these two radically different options they preferred.
We should focus on how to make the most of this, rather than pursuing a parliamentary process for a multiple-choice referendum.
All the parties - unionist and pro-independence - are keen to avoid the situation which has unfolded in the Canadian province of Quebec, where debate over multiple independence referendums over the years has been dubbed the "neverendum".
The blueprint for survey design is the public finance referendum with multiple proposals.
Warning of a potential knock-on effect, Brennan added: "Eurosceptics in Europe, including in Denmark, France, Italy and the Netherlands, are demanding their own referendums on multiple EU issues.
Krzysztof Blusz, a strategic analyst at the WiseEuropa thinktank in Warsaw, said the outcome of the EU referendum would have multiple indirect effects on Nato, almost all of them negative.
Last June's referendum laid bare multiple divisions in British society, but none so full of pathos as that emerging between Labour and its own traditional supporters in the heartland towns of the Midlands and the north.
