Jeremy Corbyn, the leader of the UK's Labour Party, has told Morgan Stanley and the wider banking industry that they are right to see him as a threat to the way they do business — dubbing investment banks the "gamblers who crashed our economy".

Corbyn was responding to a piece of research, published this week by the Wall Street bank's analysts, which said that the level of macro uncertainty in the UK was at its highest since the 1970s.

Morgan Stanley's analysts, led by strategist Graham Secker, said that UK's fragile political situation could be "perceived as a bigger risk than Brexit" and suggested that a Labour government under Corbyn could be damaging to UK equities.

But the Labour leader hit back in a video posted to his official Twitter account on Thursday evening, in which he said: "Bankers like Morgan Stanley should not run our country but they think they do because the party they fund and protects their interests. the Conservative Party, is in Downing Street."

Corbyn pointed to the high pay being received by bankers — including James Gorman, the chief executive of Morgan Stanley — while average workers were finding it harder to get by and still paying for the mistakes of the "gamblers and speculators who crashed our economy in 2008".

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In its 2018 European Equity Outlook, Morgan Stanley said its economists thought it highly likely that the UK would see another general election before the end of 2018. The bank wrote: "For much of the past 30 years and more, a change of government ultimately had a relatively limited impact on the UK equity market, as policy settings didn't change too dramatically.

"However, this may not be the case if we see a Labour government take power under its current leadership, given its very different policy approach."

In his video, Corbyn described Labour as a government in waiting and told the banking community it was right to see the party as a threat. "We're a threat to a damaging and failed financial system that's rigged for the few," he said.

Speaking at the Sohn London Investment Conference on Thursday, Davide Serra, the head of hedge fund Algebris Investments, told investors to "prepare for Corbyn" by shorting UK government debt. He said: "Labour is leading in the latest opinion polls...we are preparing for Corbyn."

Morgan Stanley declined to comment.

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