"This is a
list of supermarket chains in the United Kingdom.
Grocery sales in the
UK are dominated by
Tesco,
Asda,
Sainsbury's and
Morrisons. These, dubbed the 'big four', had a combined market share of 73.2% of the UK grocery market in the 12 weeks ending 4 January 2015."
I happen to be a director of a property company managing a set of rural workshops. Building more in a rural area is not financially viable because there are not enough local businesses. Imagine if 20 local farmers did it.
Many Cornish farmers have given up dairy and now lease land to vegetable growers owned by packing stations. The supermarkets are screwing them on price also which is why they can no longer pay locals decent rates. The organisation of the workers is in the hands of Russian and Ukrainian gangmasters.
I don't blame the farmers. When the supermarkets buy bunches of daffodils for 6p and sell them for £1.99 you might guess that the world of Tesco is not a benign place donating their profits to charity.