I can find lots of articles about how Brexit will be good for the economy but they're written by pro Brexit campaigners. I've not really seen anything by an official or impartial body like the IMF, BOE etc that supports that view.If you're interested, just google for something along the lines of "positive economic benefits to brexit" I've drawn my view from a bundle of sources, posting one or two will simply drag the discussion to those.
Having read a few, I reckon there will be a slight down turn initially, but not the long running and deep collapse some are espousing. Even the remain campaign costs it at about £700 for each of us. For me, that's a reasonable price to maintain democracy.
Turn it round, as the remain figures are most likely worse case, would you sell your right to have a vote on who makes the rules for £700?
I think there's a good reason for that.