THE Scottish Secretary has claimed optimism and hard work will make a success of Brexit

Speaking at an evidence session at the Scottish Parliament, Alister Jack said he does "not put any store in forecasting" from economic experts.

Jack said it will be hard work and "gumption" which will ensure the UK economy grows after the transition period ends and the UK officially leaves the EU.

He added he is certain the UK economy will grow, despite projects indicating the preferred Canada-style deal could reduce GDP by about 6.2% in 15 years.

This week has seen the first discussions to arrange the UK and EU's post-Brexit relationship take place in Brussels.

READ MORE: Alister Jack prompts anger among MSPs with migrant comment

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."

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.

READ MORE: WATCH: Scottish Secretary says 'Boris Bridge' is a 'euphemism'

"You get on, you look at the problems that are in front of you and you work hard to get the best outcomes."

His comments came amid growing concerns over the coronavirus.

Global spread of the illness has led Goldman Sachs to warn Covid-19 could push the UK economy to the brink of recession. 

However, Boris Johnson has denied the outbreak would mean needing to delay the end of the transition period.