Consumer prices · 13 categories · latest 2026-07-01
Source: International Monetary Fund. Data as of 2026-08-14. Collected by Living Inflation Data, HBS Innovations in Economic Measurement (IEM) Lab www.iemlab.org.
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2 recorded findings for this country, shown exactly as in the full quality register.
| Country | Source | Periods | Status | Series | Found | Detected by |
|---|---|---|---|---|---|---|
| Mauritius | IMF | 2018-04-01 | confirmed | MUS.CPI_CP02_* | 2026-09-02 | Possible index rebasing |
| Mauritius' alcohol and tobacco index steps 100.24 -> 79.20 in April 2018 and then holds between 79.0 and 80.3 for a year. It also fails the base check: Mauritius declares 2023A and this division averages 104.5 across 2023 rather than 100, so its history is not on the declared base -- the same signal as Gabon. Separate from the three divisions that were not collected before 2002 (see mus-cpi-divisions-absent-1999-2002). 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. | ||||||
| Mauritius | IMF | whole series | confirmed | MUS.CPI_CP08_*, MUS.CPI_CP10_*, MUS.CPI_CP11_* | 2026-09-02 | Impossible zero value, Series stops and later resumes |
| Three Mauritian divisions have no real data before mid-2002, and the source records the absence two different ways in the same series -- which is why it took two checks to see one event. Communication, education and restaurants all read exactly 0.00 from July 1999; education and restaurants then stop being published at all from February 2001 to June 2002, while communication carries on reading 0.00 until June 2002. All three start at a real level in July 2002 (56.99, 44.11, 30.16). The zeros are placeholders, not price levels -- an index of zero means the basket is free -- and the source agrees with that reading: it publishes no month-over-month rate for July 2002, which is precisely the month a rate against zero would be infinite. 74 of the 80 zero index cells in the database are these three series. | ||||||