(1) Dairy farmers in the UK are protesting against major dairy processors cutting the price they pay per liter of milk by up to 4 pence, putting farms at risk of insolvency. Supermarkets make average gross margins of 34% on milk, suggesting they have significant power over milk prices. (2) The UK government will appoint an adjudicator to fine supermarkets that violate the Groceries Code by treating suppliers unfairly, such as demanding sudden price cuts. However, retailers argue this will reduce supply chain efficiency and increase costs passed to consumers. (3) The UK food retail market is highly concentrated, with 4 major supermarkets controlling 76% of the