Italian prime minister Mario Monti spoke in support of David Cameron's highly-anticipated Europe speech today.
"I agree with Prime Minister Cameron, as I agree that prosperity and growth have to be priority number one for Europe," he said.
"I am confident that if there is to be a referendum one day, the UK citizens will decide to stay in the European Union and contribute to shape its future."
He added: "The European Union does not need unwilling Europeans - we desperately need willing Europeans."
To the surprise of many Lib Dems, Nick Clegg appears to have played down the importance of the Coalition's divide on an in-out referendum.
Business leaders in Davos are worried about the Prime Minister's pledge to put Britain's membership of the European Union to a referendum.
With some in France keen to "roll out the red carpet" for a British exit, Germans favouring decentralisation welcome EU renegotiation talks.