Senior executives from four of the major supermarkets will be questioned by MPs this week on the rising cost of groceries, as they face mounting pressure to offer a wider range of essential products at cheaper prices.
While average inflation for food and non-alcoholic drinks rose by 18.4% in the year to May, the executives are likely to be challenged on why some meat products and vegetables have almost doubled in price.
They will also be questioned over profit margins, competition in the supply chain and when shoppers can expect to see significant falls in prices.
