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EVIDENCE STUDIES · NUMBERED EDITIONS

One question, the answer and the file behind it.

Each study has an author, a date, findings with numbers and evidence state, figures that respond to mouse and keyboard, method, limits and the data to download with SHA-256. CC BY 4.0 license.

Editions

  1. No. 003In September 2026, the Selic target was 13.75% and 12-month IPCA inflation 4.58%: a real rate of 8.77% a year, net of past inflation.Selic target, 12-month IPCA, ex post real rate, unemployment and the PTAX dollar up to September 2026, with the 12-month comparison and five-year series. Central Bank data with SHA-256.8.77% ex post real rate in September 2026Published on November 6, 2026 · Thiago Holtz · DerivedRead the study
  2. No. 002Ten pollsters registered 56% of the 1,404 presidential polls of 2026.1,404 PesqEle records: concentration by pollster, calendar, method, declared sample and margin, with the margin of a simple random sample as reference. TSE data with SHA-256.56% of presidential polls came from ten pollstersPublished on November 6, 2026 · Thiago Holtz · DerivedRead the study
  3. No. 001Between the 2026 rounds, turnout fell in all 7 Northern states and rose in 18 of the other 20.From round 1 to round 2 of 2026, turnout fell in every Northern state and rose in 18 of the other 20. Numbers, figures, method and TSE data with SHA-256.−8.06 pp largest turnout drop between rounds, in AmapáPublished on November 5, 2026 · Thiago Holtz · DerivedRead the study
Discover · open and freeAgents & SkillsSkills, agents and MCP servers with origin and triage.Operate · early accessHarnessThe cloud IDE where every agent runs with an owner and a receipt.Decide · early accessEvidenceSynthetic data to test the decision before you invest.