Britain's darkening growth outlook means that the £9.9billion 'headroom' left by the Budget in October has been more than wiped out, the Resolution Foundation think-tank said.
Up to 160,000 part-time retail jobs could be axed in the next three years as a result of tax changes announced in the Budget, an influential industry body has warned.
John Eckbert, Chief Executive of Five Guys, said the increase on employers' National Insurance contributions would slow his company's ability to create new jobs and halt growth.
Amanda Pritchard demanded a more 'radical' approach to funding the health service and said better-quality buildings and technology were needed to boost productivity.
The Prime Minister made the remarks after his visit to a housing development - to promote plans for a generation of new towns - was disrupted by a tractor protest.