LONDON, Dec 4 (Reuters) - Bank of England Governor Mark Carney defended the central bank's warnings of a potentially major economic hit from Brexit which angered lawmakers opposed to Prime Minister Theresa May's plans for leaving the European Union.
"There's no exam crisis. We didn't just stay up all night and write a letter to the Treasury Committee," Carney said at a committee hearing in parliament. "You asked for something that we had, and we brought it, and we gave it to you."
May agreed a plan with EU leaders last month but it faces deep opposition in parliament including from within May's own Conservative Party. The plan faces a key vote on Dec. 11.
Pro-Brexit critics of Carney, who have long accused him of political meddling in the debate about Britain's relationship with the EU, dismissed last week's BoE report as scare-mongering.
Former BoE Governor Mervyn King joined the criticism on Tuesday when he lamented the central bank's involvement in what he said was an attempt to frighten the country about Brexit.
"It saddens me to see the Bank of England unnecessarily drawn into this project," King said in an article published on Bloomberg.
Carney stressed the worst-case scenarios were "low-probability events in the context of Brexit" which the central bank needed to consider to make sure Britain's banking system could withstand any Brexit shocks.
"We're already sleeping soundly at night, because we have the financial sector, the core of the financial sector, in a position that it needs to be for a tough scenario."
But he told lawmakers that the price of food could go up by 10 percent if Britain left the EU with no deal and no mitigating arrangements to avoid chaos at the country's ports.
He said Britain's ports were not ready for even a managed shift to World Trade Organization rules for the country's exports and imports with the EU.
Carney reiterated his opposition to ceding decision-making over rules for the banking sector to the EU after Brexit, given the scale of Britain's financial services sector.
Deputy Governor Jon Cunliffe said a Norway-style Brexit -- in which Britain would stay in the EU's single market and follow the bloc's rules without any say on them -- was undesirable given Britain's finance industry was 20 times the size of Norway's.