Longer Sunday trading won't boost sales, says Labour
19 August 2012 Last updated at 17:54 BST
Labour has criticised government plans to make temporarily extended Sunday trading hours permanent.
Supermarkets and large stores have been allowed to open for longer during the Olympic and Paralympic Games.
The shadow business secretary Chuka Umunna said there was "absolutely no evidence to show that this move... would lift us out of recession".