Sainsbury's boss King 'will respond' to competition
7 May 2014 Last updated at 18:08 BST
Sainsbury's chief executive Justin King has been telling BBC News what he thinks about competitors announcing price cuts.
Morrisons last month announced price cuts on over a thousand of its products.
Asked about the cuts, he said: "We measure 15,000 prices every single day... If some of our competitors move their prices we will respond."