Consumer prices · 13 categories · latest 2026-07-01
Source: International Monetary Fund. Data as of 2026-08-31. Collected by Living Inflation Data, HBS Innovations in Economic Measurement (IEM) Lab www.iemlab.org.
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5 recorded findings for this country, shown exactly as in the full quality register.
| Country | Source | Periods | Status | Series | Found | Detected by |
|---|---|---|---|---|---|---|
| Bahrain, Kingdom of, Bangladesh, Chad, Congo, Democratic Republic of the, Congo, Republic of, Djibouti, Gabon, Pakistan | IMF | 2019-12-01, 2025-05-01, 2017-01-01, 2009-12-01, 2014-06-01, 2014-07-01, 2019-04-01, 2012-07-01 | confirmed | BGD.CPI_CP09_*, BHR.CPI_CP09_*, COD.CPI_CP07_* +5 more | 2026-09-02 | Single-month index anomaly |
| Eight single bad months in eight countries, one division each, with nothing tying them together beyond the shape and the source. Kept as one entry rather than eight near-identical ones, with every case named so none is hidden behind a summary: Bangladesh recreation 149.90 in Dec 2019 between 98.1 and 98.6; Bahrain recreation 101.7 in May 2025 between 64.3 and 67.6; DR Congo transport 98.1 in Jan 2017 between 130.5 and 131.2; Congo communication 111.2 in Dec 2009 between 72.7 and 78.2; Djibouti alcohol and tobacco 158.8 in Jun 2014 between 80.7 and 89.9; Gabon communication 100.3 in Jul 2014 between 135.0 and 138.8; Pakistan restaurants 237.3 in Apr 2019 between 119.5 and 120.8, almost exactly double; Chad housing 60.2 in Jul 2012 between 84.0 and 89.4. In every case the two neighbours agree with each other far more closely than either agrees with the flagged month, and the series continues from where it left off. | ||||||
| Burundi, Djibouti, Kosovo, Republic of, Liberia, Qatar, Solomon Islands, Trinidad and Tobago | IMF | whole series | watching | LBR.CPI_CP10_*, BDI.CPI_CP10_*, SLB.CPI_CP08_* +6 more | 2026-09-02 | Manual |
| Found while working the base-break queue and recorded rather than checked, because measuring it did not support a rule. 109 runs across 74 series publish an index that does not change AT ALL for two years or more. Liberia's education index is exactly 100.00 for 157 consecutive months -- thirteen years -- and Burundi's is 95.00 for 98. The reason there is no check: 82 of the 109 runs are communication and education, which is exactly where administered and regulated prices sit, so a flat index in those divisions is often the correct answer rather than a placeholder. A rule firing 109 times in the two divisions where flatness is normal would be the queue crying wolf, which this file is explicit about not doing. The subset worth returning to is the 19 runs pinned at exactly 100.00: a series sitting on its base value and never leaving it is a different claim from one holding a fixed tariff. The series named here are the longest runs, so a reader of any of them is told; the other 65 series are not, which is a gap this entry does not close. | ||||||
| Djibouti | IMF | 2013-01-01 | confirmed | DJI.CPI_INDEX.M, DJI.CPI_YOY.M, DJI.CPI_MOM.M | 2026-09-01 | Cross source, Headline shifts when category detail begins |
| Resolved 2026-09-02, and it is a base break in the IMF's monthly index at January 2013. The disagreement was the symptom: the monthly levels imply -12.56% for 2013 where the World Bank publishes +2.71%, 15.3pp apart and one of only two country-years out of 4,994 to disagree by more than 2pp. What settles it is not the headline but the DIVISIONS. The index steps 99.41 -> 84.31 in January 2013, -15.2%, and then climbs normally from the new level, giving +1.3% for 2014 -- ordinary inflation on either side of one cliff. And all twelve COICOP divisions BEGIN in that same month: there is no December 2012 for any of them. A new collection starting and the old headline continued through it without rescaling is exactly what that looks like, and the World Bank's +2.71% is then the correct figure for the year. Worth keeping: base_break never saw this. At -15.2% it sits under the -20% threshold, and lowering the threshold to catch it would take the raw hit count from 130 to 216 -- most of them real -- for this one case. The threshold stays where it is and cross_source covers the band beneath it, which is the argument for having two checks that look at different evidence. | ||||||
| Djibouti | IMF | 2014-05-01, 2015-01-01 | confirmed | DJI.CPI_CP02_*, DJI.CPI_CP05_*, DJI.CPI_CP06_* | 2026-09-02 | Possible index rebasing |
| Two different things in one country. Furnishings and health both step down in January 2015 -- 120.01 -> 95.97 and 126.25 -> 99.55 -- and stay at 0.81x and 0.79x, landing within a few points of 100 and moving barely at all for the following year, which is what a division put on a 2015 base looks like. Alcohol and tobacco is not that: 108.15 -> 80.66 in May 2014 with a six-month average of 0.97x, in a series that swings between 80 and 159 across 2014 and carries an isolated bad month of its own in June (see imf-isolated-outlier-months). That series is noisy throughout and no base change is visible in it. Separate from the January 2013 headline break, which has its own entry. The step is permanent, confined to one division, and not a revision: these values were published this way. What the data CANNOT settle is whether the division was put on a new base by itself or its prices really fell, because both produce exactly this shape and nothing held here separates them -- the series is verified at 100 in the reference period the source declares, which is true either way. The country's headline index barely moves in the same month, which is suggestive and not conclusive: these are mostly light divisions, so a real fall would leave only a small mark on the aggregate. What IS certain is the consequence, because the source's own rates are this index restated -- the published month-over-month and year-over-year figures equal the index ratios at all 388,805 and 370,534 overlapping cells, checked 2026-09-02. So if the step is a re-reference, the source's own rates divide across it, and the reader has to be told. | ||||||
| Djibouti | IMF | whole series | confirmed | DJI.CPI_* | 2026-09-02 | Series stops and later resumes |
| Djibouti publishes nothing between July 2023 and March 2026 -- 31 consecutive months across every CPI series -- and then resumes, reaching July 2026. Note this country also carries an 2013 base break (see dji-cpi-2013-discrepancy); the two are separate and neither explains the other. | ||||||