Supermarket prices

SIR – The Competition and Markets Authority allowed the Tesco-booker merger to go through on the basis that the two companies served differing markets.

Asda and Sainsbury’s (Letters, May 2) do not. Promises of lower prices and other benefits to consumers might be valid in the short term, but it will be at the expense of suppliers initially and in time the customer will have no choice but to accept higher prices.

The authority is duty-bound to look at the proposal, but it will be a travesty if it allows such a patently awful deal for the consumer. Simon Taylor

Poringland, Norfolk

SIR – After asking the fishmonger at my local Asda where their fish were from, I was informed that they came from their Leeds warehouse.

Preferring fish from seas and oceans, I shop for them at Sainsbury’s. James Carson

Wiveliscombe, Somerset