Reality Check: why price caps are pointless

The UK government's consideration of price caps on supermarket food is based on a fundamental misunderstanding of how the grocery market actually works, argues Michael Simmons in this episode of Reality Check. Despite soaring inflation fears linked to global supply chain disruptions, the evidence shows supermarkets operate on razor-thin margins—just 2% on average—making the idea of 'price gouging' a myth fueled by public misconception. The Institute of Economic Affairs found people wildly overestimate profit margins across sectors, believing supermarkets make 50% profits when reality is closer to 2%. This misperception is being exploited by politicians like Rachel Reeves for political gain, using moralistic language around 'gouging' to distract from their own policy failures. The episode reveals that intense competition among supermarkets has driven food prices down to record lows in the UK, with household spending on food now just 11-12% of income—far below the 30% of the 1950s. Experts from the British Retail Consortium and Freshwater Strategy emphasize that government interference like price caps would disrupt a system that already delivers exceptional value. Historical examples, including the role of supermarkets in undermining the Soviet Union by exposing citizens to global abundance, underscore their broader societal importance. Ultimately, price caps aren't just pointless—they're dangerous, as they distort price signals that guide supply, production, and quality.