Walmart-owned 'big four' brand is losing its value edge in the era of discounters
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