With a month to go until a referendum on the U.K.'s membership of the European Union (EU), analysts at Citi have warned against viewing the result as being "strictly binary" one way or another.
"Our 10-poll average suggests a continued narrow lead for 'Remain'. The campaigns are well underway, but many voters have yet to focus on the referendum," analysts at Citi led by Tina Fordham, managing director and chief global political analyst at Citi, said in a research note on Monday.
Its 10-poll average showed 44.6 percent were in the "Remain" camp versus 41.3 percent backing the "Leave" vote.
Immigration, EU regulations and the cost of the U.K.'s membership of the EU are all key issues in the debate and are sticking points for those that want to leave the bloc. Those in the "Remain" camp point to political and economic instability and uncertainty as the likely fallout should Britons vote overwhelmingly to leave the EU.