Away from the fancy theorising, the Washington Post had this to say a few months ago:
"While a no-deal Brexit is a clear worry given the potential for economic carnage, the prospects of a hard-left Labour government under Corbyn is arguably even more troubling for financial markets."
    This is the same Corbyn that Bloomberg quotes thus:
"... agrees with finance spokesman, John McDonnell: The main opposition party should prepare for a run on the pound and capital flight from Britain should it take power.“
      Yet the left is obsessed with Brexit. Perhaps a future under Corbyn is simply so awful they refuse to countenance it?