Supermarket tale shows capitalism at its best

Trolley Wars: The Battle Of The Supermarkets, by Judi Bevan, Profile, €25.90.

Supermarkets are the great levellers of our age. Unless you have an extremely obliging partner or can afford to eat out every night, a hefty portion of your life is destined to be spent pushing trolleys, reading labels and queuing at checkouts.

Probably because most of us find this a fairly tedious activity, these giants of retailing tend to get a ...