BCC, head of economics, Suren Thiru said: "While UK economic output may grow further in the short term as restrictions ease, this may dissipate as the economic scarring caused by the pandemic starts to bite, particularly as government support winds down.
"Although some of the individual measures announced in the Summer Statement were welcome, more significant fiscal stimulus is likely to be needed to help kickstart a sustained recovery.
"This should include new incentives for business investment and reducing the overall cost of employment through a cut in employer national insurance contributions."