Optimism and hard work will make a success of Brexit, the Scottish Secretary has claimed.
Speaking at an evidence session in Holyrood, Alister Jack said he does “not put any store in forecasting” from economic experts.
Mr Jack said it will be hard work and “gumption” which will ensure the UK economy grows after the relationship with the European Union changes.
He added he is certain the UK economy will grow, despite projections saying the preferred Canada-style trade deal could reduce GDP by as much as 6.2% in 15 years.
The comments came as the first week of negotiations on the future relationship between the UK and the EU were drawing to a close in Brussels.
Mr Jack told MSPs: “We will leave, and as the fifth strongest economy in the world, I’m absolutely confident we will prosper and we must look at it with optimism.
“The one thing that forecasters are quite consistent at is getting things wrong.
“I’ll stand by this – I think we’ll grow our economy very successfully outside the EU and we will do very good trade deals around the world.”
Mr Jack also questioned projections that a possible UK-US trade deal would see an increase in British GDP.
He said: “In 25 years of business, I looked at many business plans, many forecasts, many models made by banks, business advisers and accountants – none of them turned out to be the outcome.
“The outcome is what you make of it. The outcome is the gumption and the commitment you put to what’s in front of you and making the best of it.
“That’s how life works.
“Just because they give us a model saying there’s going to be an uplift from an American trade deal, the uplift will be based on the quality of that trade deal.
“I’m not standing by forecasts, I’m standing by as a practical person with a practical business life behind me.
“You get on, you look at the problems that are in front of you and you work hard to get the best outcomes.”