Jeremy Corbyn has told investment bank Morgan Stanley that it is right to regard him as a threat.

Earlier this week, the US bank released an investor report that said the prospect of a Corbyn government was “a bigger risk to the UK economy than Brexit”.

Mr Corbyn has published a video on social media in response, pledging that a Labour government would reform banking regulation to rein in the “speculators and gamblers” who crashed the economy in 2008.

Labour said that, despite the bank paying more than $3bn to US authorities over charges relating to its involvement in the crash, Morgan Stanley has been courted by senior members of the Government, meeting Chancellor Philip Hammond four times in a year.

A report from Morgan Stanley’s European equity team earlier this week warned investors: “For the UK market, domestic politics may be perceived as a bigger risk than Brexit.

“From a UK investor perspective, we believe that the domestic political situation is at least as significant as Brexit, given the fragile state of the current Government and the perceived risks of an incoming Labour administration that could potentially embark on a radical change in policy direction.”

Mr Corbyn responded: “These are the same speculators and gamblers who crashed our economy in 2008. And then we had to bail them out.

“Their greed plunged the world into crisis and we’re still paying the price, because the Tories used the aftermath of the financial crisis to push through unnecessary and deeply damaging austerity.

“That’s meant a crisis in our public services, falling wages and the longest decline in living standards for over 60 years.

“Nurses, teachers, shop workers, builders, just about everyone is finding it harder to get by, while Morgan Stanley’s CEO paid himself £21.5m last year and UK banks paid out £15b in bonuses.

“Labour is a growing movement of well over half a million members and a government-in-waiting that will work for the many. So when they say we’re a threat, they’re right.