Primary sources first
Central banks, exchanges, statistical agencies, regulators, company filings and official releases are preferred for official data.
METHODOLOGY
Trust the number.
Understand the source.
AMB’s editorial rules make freshness, market type, source quality and uncertainty visible.
VERIFY.THEN PUBLISH.
Label the market
Official references, market observations, prior closes and parallel-market observations are never treated as interchangeable.
Timestamp freshness
Flagship rates carry a “Rates verified as of” time. Previous-session figures are labeled explicitly.
Parallel consensus needs evidence
Nigeria’s AMB parallel benchmark requires at least two reasonably current independent observations.
Show disagreement
Material source dispersion is explained rather than hidden inside an average.
No publish beats bad publish
Stale, contradictory or insufficiently verified data should fail the publication gate.
REAL ESTATE
Property data needs different rules
PROPERTY METHODOLOGY
Transaction data ≠ asking prices
AMB will distinguish completed-transaction evidence from listing prices, broker observations and modeled estimates, with geography, property type, period and source clearly labeled.