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16 articlesNovember 2026
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Data & analytics8 min readHow much does AI raise productivity? Read three studies closely first
For owners and managers who keep hearing claims like "AI lifts productivity by 40%". This post reads three studies, two randomised experiments and one staged-rollout study, and shows what each figure measures, on whom, and where it breaks when you carry it into your own team.
Data & analytics10 min readWhen history fails: how Starbucks forecast through COVID
For owners and finance directors who must plan when past years no longer help to extrapolate. Starbucks withdrew its guidance, published what it could, then reissued ranges; this post sets those ranges against what happened.
- Data & analytics10 min read
Five questions to ask before you trust a chart, tried on a real report
For managers handed a polished report before a decision meeting. Five questions for reading any chart: what is measured, who is in the data, does the picture match the numbers, how big and how sure, and does it apply to you?
- Data & analytics10 min read
What does "2.7 times more likely" really mean?
For managers and founders handed a report that says one group is "2.7 times more likely" to do something. You will learn which base rate to ask for, and how to turn a multiple into people per 100 in four steps.
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