The regional-revenue dataset behind Nadia's hand-built vs Copilot-first-draft comparison in Chapter 7 of The Defensible Decision. One quarter, four regions, $28.4M on plan — and one region hiding a material miss.
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README.txt
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SCHEMA.txt
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nadia-q3-region.csv
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nadia-q3-region.json
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Start with README.txt for purpose and limitations, then use SCHEMA.txt for field definitions.