In a January 2022 opinion piece for The Guardian, antipoverty activist and food journalist Jack Monroe announced her own price index, which they called the Vimes Boots Index (VBI), to track the average prices of cheapest foods, as opposed to the ONS's official Consumer Price Index (CPI) and Retail Price Index (RPI), which are price indices tracking average household spending that are not adjusted for income. Speaking in the context of the official rate of inflation reaching 5.4 per cent, Monroe argued that the CPI did not properly reflect the priorities of the average consumer; in particular they cited items in the ONS's 700-item "basket" – including legs of lamb, televisions, and champagne – whose lower rises in price, she argued, had the effect of depressing the effective cost of inflation.