UK supermarkets: prices, suppliers and horse meat
13 January 2014 Last updated at 15:15 GMT
Supermarkets can be seen as impressive businesses driving down price by some, but also to blame for the horse meat scandal and squeezing suppliers by others.
Adam Fleming reports on the changing face of UK supermarkets and how even the newest branches try to look like the shops from decades ago.
Some images are from Pathe News