Business leaders have urged the Government to stick to its deficit reduction plans but to do more to drive economic growth.
The Confederation of British Industry (CBI) said the coalition underspent by £7.8 billion last year and would receive a windfall of £4 billion from the 4G spectrum auction next year.
In its submission to the Chancellor ahead of next week's Autumn Statement, the business group also pressed the case for a business bank, and warned against any reduction in pension tax relief.
Director general John Cridland said: "The CBI fully supports the Government's deficit reduction plan.
"This is critical for the UK to keep the confidence of international markets."
The CBI said the Government should use next week's statement to unveil £1.5 billion worth of spending on "short-term, high-impact" measures to support economic growth.