Leaving the single market would be damaging to almost every sector of the British economy from manufacturing and energy to retail and financial services, according to a new report commissioned by an alliance of Tory, Labour and Liberal Democrat politicians trying to stop a hard Brexit.

The study, by the Centre for Economics and Business Research, found every major wealth-creating sector would be affected negatively, with manufacturing hit if there are tariff barriers to EU trade and the creative industries suffering a “body blow” if there were strict controls on immigration.