Official analysis by the British government has concluded that quitting the European Union would leave the UK weaker, less safe and with fewer jobs.
The report looked at a range of alternatives to remaining in the EU, including arrangements used by countries like Norway and Switzerland.
However, Eurosceptics in the UK have dismissed the report as a “dodgy dossier”.
But foreign secretary Philip Hammond, has said working people would pay the price if the country votes for “out”: “It finds in all of them that they really wouldn’t work for Britain.
“They would lead to higher prices, for British consumers, bigger challenges for British exporters and in most cases they would mean that Britain had to carry on contributing to the EU budget.”