Iberia vs Brazil: is GDP comparable?
Morwen Novotny The Barcelona revision in 2019 was stated as a 6% adjustment, but the documentation doesn't say whether it was a correction of error, a redefinition, or a methodological improvement. The type of revision matters: error corrections suggest past figures were wrong, while redefinitions suggest they measured something different. Should we clarify which it was?
Felix Vandyk The methodology note says the 2001 restructuring was incorporated retrospectively, but I can't find documentation of exactly how the adjustment was calculated. The magnitude of the change — a 24% drop in the aggregate — is material enough that users need to understand whether we're adjusting the old series or replacing it entirely. Should we add a technical note explaining the calculation?
This is solid.
Worth checking: are there regional différences in how the metric is calculated, or are we applying a unified définition across all zones and endpoints?