By Glenn Vaughan, Chief Executive of the British Chamber of Commerce in Belgium.

So there will be a UK referendum on membership of the European Union. Business opinions seems strongly in favour of UK membership and the polls also say the British public would vote to stay in – but opinion is volatile. We need to make sure our members’ voice is heard, and we’ll poll our members again today.

You might not have noticed that despite the success of UKIP in the European election, public opinion on this question has been quietly shifting for quite some time. YouGov’s latest poll for The Sun Newspaper puts public support for remaining in the EU at 45% with those for leaving at 33% (5-6 May 2015).

So maybe business doesn’t need to do anything after all. Hardly. If the polls show anything, especially after this morning’s UK general election results, it…