Kenya's Inflation Drop: What the KNBS Numbers Actually Show

The Headline Figure and What It Hides

Three months of falling CPI does not mean the cost-of-living crisis is over.

The Kenya National Bureau of Statistics reported that headline inflation fell to 6.3 percent in the most recent monthly release, down from 8.1 percent at its recent peak. For a Central Bank of Kenya whose monetary policy committee has held the benchmark rate at 13 percent for two consecutive cycles, that trajectory is broadly welcome news. But the headline Consumer Price Index is a weighted average — and averages conceal as much as they reveal. When Pandagpanda disaggregated the KNBS release by sub-index, two patterns emerged that the headline figure obscures. First, food and non-alcoholic beverages — which carry a 36 percent weight in Kenya's CPI basket, reflecting actual household expenditure patterns — declined only marginally, from 9.8 percent to 9.1 percent year-on-year. The larger drag on the overall index came from transport, where fuel prices eased following a government levy adjustment in the preceding quarter. Second, within the food sub-index, prices recorded at formal supermarkets declined meaningfully, but informal market surveys conducted by civil society organisations in Mathare, Kibera, and Kawangware — markets where the majority of Nairobi's lower-income residents shop — showed food prices either flat or still rising. The CPI basket's data collection methodology over-weights formal retail channels, which means the official figure understates the inflation experience of households without regular access to large-format grocery stores. The Central Bank's rate decisions are based on the official figure. That is a structural data gap worth naming explicitly, and Pandagpanda will continue monitoring both the official series and supplementary informal-market price surveys as they become available.