'Brexit': should the UK stay or go?

With 2014 expecting to see the UK's main political parties jockeying for position ahead of parliamentary elections mid-2015, attention is shifting to a key pledge from prime minister, David Cameron: that UK voters will be offered their say on Britain's membership of the EU, in a conclusive in/out referendum. David Pollard asks whether a UK exit or 'Brexit' would be good for the UK.