Report says offers lead customers to spend more, while Which? has launched a super-complaint into supermarkets' deals
Company reported lower profit but still managed to beat analyst expectations
King will stand down at AGM in July after a decade at the top, but has yet to reveal his next move
Supermarkets report record sales for the Christmas period, with winners at both ends of the market
Tesco's campaign does not take quality and ethical sourcing into account, claims Sainsbury's
Chief executive wants to 'level the playing field' between high street and internet retailers
Charlie Bigham is banned from licking food off a knife or eating hot chillies under the new agreement
Boost takes supermarket chief executive's salary up to £4.27m - and he could earn even more this year
Grocer to make first foray into online world - but how will Waitrose react to Ocado's deal with its rival?
Supermarket's sales rise amid 'challenging' conditions as analysts praise CEO for 'keeping things simple'
Gulf state planning swoop for British high street giant - but others have tried and failed before
Supermarket giant follows Tesco, Sainsbury's and Asda onto the web after first profit drop in six years
The only egg to mention Jesus on its packaging will be sold by all but one of the big supermarkets
Supermarket giant acquires stores from collapsed chain as part of plans to expand local stores
Justin King says customers have more power than government to force multinationals to pay taxes
Investment programme aimed at winning back customers is blamed for supermarket's bad results
Reviewers are impressed with the Nook Simple Touch, but can it take Amazon's crown?
'Rural communities have enough problems as it is without us boycotting their produce,' says TV naturalist
British supermarket habit of bottling South African wine here brings threat of retaliation
Don't tell their agents, but just ten footballers are earning enough to make annual big money chart