Published on 12:00 AM, June 23, 2016

Big business raises Brexit alarm on eve of vote

A woman reads a newspaper in London with a 'vote remain' advert for the Brexit referendum. REUTERS

More than 1,200 business titans united Wednesday to warn against Britain breaking with the EU, as rivals scrambled for the last votes on the eve of a tightly fought referendum that will shape Europe's future.

The world's fifth-largest economy will suffer a powerful blow to growth and jobs, corporate chiefs warned, if Britain becomes the first state to defect from the EU in the bloc's 60-year history.

The "Remain" camp has a razor-thin lead -- 51 percent versus 49 percent for "Leave", according to an average of polls compiled by What UK Thinks -- and surveys consistently show more than 10 percent of people are undecided.

"Britain leaving the EU would mean uncertainty for our firms, less trade with Europe and fewer jobs," said the chiefs of 1,285 companies employing 1.75 million people, ranging from Virgin boss Richard Branson to media tycoon Michael Bloomberg.

"Britain remaining in the EU would mean the opposite: more certainty, more trade and more jobs. EU membership is good for business and good for British jobs," they said in a letter to The Times newspaper.

World markets are on alert over the historic vote, with many markets edging gingerly higher on the expectation that Britons will finally decide to stay.

If Britain decides to go its own way, however, financier George Soros has warned of a Black Friday plunge in sterling.

With uncertainty rife, the world's leading central banks have consulted over how to react to the financial market reaction, according to the European Central Bank.

Leading Brexit campaigner Boris Johnson, a former mayor of London touted as a future prime minister, won a standing ovation from many people late Tuesday when he urged Britons in a public debate to declare "Independence Day" by voting to pull out of the EU.

"This is our last chance to take back control of so much that matters in our lives," he told Sky News on Wednesday.

Though many voters fret over the financial consequences of a Brexit, others relish the prospect of taking back power from Brussels and reining in high levels of immigration.

"I think we need to make our contribution to Europe and to the global economy. And the best way we can do that is by being in it, not by ignoring it," Chet Patel, a 44-year-old telecoms worker told AFP in central London.

Pat Hand, a 50-year-old construction worker, said he would be casting a vote to leave the EU.

"The country is in an absolute mess. I work in construction and every single person on my job is not English," he said.

Prime Minister David Cameron, whose job is on the line in case of a Brexit, predicted a "Remain dividend" for the economy if Britain stays but admitted: "It's very close, nobody knows what's going to happen."

"I think on Friday that businesses, wealth creators, job creators will think: Britain has made a decision, let's pile back into the economy and create jobs and opportunity," he told the Financial Times in an interview.

Speaking to BBC television, he said: "Leaving the EU doesn't solve the challenge of immigration but it creates a massive problem for our economy".

"There's no going back if we vote to leave" he said. Two newspapers used their Wednesday front pages for last-minute endorsements of opposite sides of the campaign.

"Lies. Greedy elites. Or a great future outside a broken, dying Europe," wrote the Daily Mail. "If you believe in Britain vote Leave."

But the Daily Mirror urged readers to back EU membership "for your jobs... for your children... for Britain's future".

The campaign has been fought over the two key issues of the economy and immigration, with both sides accusing the other of "scaremongering. The Mirror described it as "the most divisive, vile and unpleasant political campaign in living memory."

Around the world, events will be held to mark what would have been the 42nd birthday of lawmaker Jo Cox, who was shot and stabbed to death last week on a village street in her electoral district in northern England, stunning the campaign.

In his first court appearance on Saturday, her alleged killer, Thomas Mair, gave his name as "Death to traitors, freedom for Britain".

Cox's widower Brendan said his wife, a noted pro-EU campaigner who advocated for refugee rights, had been killed because of her political views. "She worried about the tone of the [referendum] debate... The tone of whipping up fears and whipping up hatred potentially," he told the BBC.

Rival camps meet for a final television debate later in the day featuring anti-EU UK Independence Party leader Nigel Farage and former Scottish First Minister Alex Salmond for "Remain".