European Economies Are Not Stagnating
At Jacobin an interesting exploration of how different methods can produce different GDP numbers, and how we (official statistics) might require methodological updating. The article explores a Dutch-developed method in particular: the Penn World Table. If I understand correctly, it does not use official exchanges rates to produce GDP number in a single currency (almost always, or always, USD), but purchasing power parity tables, which track real costs over time of baskets of products, which generates a price index which can be compared to different countries.
Gives you a good idea of what goes on in official statistics, and what the impact is on key figures you’ve heard about and your government uses to determine policy.