As you will be aware, self-checkouts were not actually looked at in The Grocer's research.
The facts are that compact self-checkouts help reduce queuing by doubling the number of till points. They also help reduce queues by up to 40%, particularly at peak times. As one member of staff can look after six self-checkouts, retailers can free up staff to help the one in 10 customers who leave without buying something they intended to because of out-of-stocks or difficulties in locating products.
John Curnow, NCR