ITIHAS: database shows Indian state GDP first estimates correlate only ~0.3 with final figures
paulnovosad · x · 2026-11-13
ITIHAS, a real-time database of Indian state GDP built by Mumbai high school students, archives every published version of state GDP figures with dates and sources. Key findings: initial estimates correlate only 0.3 with final revised figures, rankings shift dramatically after revisions, and recomputing the 15th Finance Commission's tax shares with revised data would have moved ₹25,654 crore across states over 2021-2026.
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