How to Find Reliable Data Online: Sources, Methodology and Red Flags
Vetting numbers online: prefer primary sources, demand methodology, check units and seasonality, and watch for the seven red flags of sloppy data.
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← Back to the blogVetting numbers online: prefer primary sources, demand methodology, check units and seasonality, and watch for the seven red flags of sloppy data.
EUR/USD is the world's most traded currency pair. What the rate really quotes, the five forces that move it, and how to read euro–dollar charts.
The best free economic data APIs — FRED, BLS, Eurostat, World Bank, IMF — with endpoints, limits, licenses and the gotchas that break real projects.
Wikipedia pageviews are a free, high-frequency, auditable measure of what people care about: what five years of the 'Artificial Intelligence' article show.
npm downloads are the closest thing JavaScript has to a popularity vote — how to rank frameworks fairly, what the numbers hide, and the current top five.
MMLU and HumanEval are the most quoted LLM benchmarks. What each measures, why scores aren't comparable across vendors, and how to avoid the benchmark trap.
The federal funds rate is the world's most important interest rate. What it is, how the Fed sets it, and how it moves your mortgage, savings and portfolio.
What the U.S. inflation rate actually measures, why year-over-year CPI is the number to watch, and how to read it without the noise of monthly prints.