Labour has responded to a pro-Conservative endorsement signed by 100 business leaders with their own letter of support from what it claims is a true section of British society.
The pro-Labour letter was signed by a mixed group including up to 50 low-paid workers on zero-hours contracts and creative industry workers such as designer Wayne Hemingway or advertising director Trevor Beattie.
It argues that the "proliferation of zero hour contracts" is a sign of the Troy government's failed economic plan. It comes after Labour leader Ed Miliband made passing a law to tackle zero-hours contracts a key policy in his election campaign.
The pro-Labour letter, which will be published in the Daily Mirror tomorrow, states:
A symbol of the failure of this Government's economic plan is the proliferation of zero hour contracts which has helped fuel the low wage, low skill economy that is letting down working people and letting down Britain.
Britain only succeeds when working people succeed.
The Daily Telegraph today published a letter co-signed by 103 business leaders including 30 FTSE 350 companies, backing the Tory government for its pro-business policies.
Chuka Umunna, the shadow business secretary, said the letter had been "concocted and organised by the Conservative party" while chancellor George Osborne said the letter was a "roll call of British economic success, innovation and job creation".