Measures built from different data get better when combined, because their biases differ. Hidalgo's trade-based complexity flatters Mexico for its US neighbour; patents, publications and software err in other directions, and the combined picture explains growth, emissions and inequality better than trade alone. This is crowd wisdom across instruments: a collective should keep sources with different biases rather than pick the single best one.

Evidence 1 passage

groundsThe Infinite Alphabet, hidalgo
the biases of trade data are different from those affecting patents, research publications, or software

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