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Changelog

March 2026 (Current Version)

  • Fiscal Cost Quantification: new subsection in the manuscript with formula, table (R$84.5--85.8 million), and discussion; result integrated into abstract, introduction, and conclusion
  • 5 advanced econometric methods: parallel trends sensitivity (HonestDiD), Lee bounds, causal forest, quantile DiD, Gelbach decomposition
  • 4 new tables + 5 new figures (18 tables / 15 figures total)
  • Expanded appendix with organized subsections and explanatory paragraphs
  • Polished main body text (~10% expansion with references to advanced methods)
  • New MkDocs page for advanced methods

March 2025

  • Full R/fixest pipeline with 14 tables and 10 figures
  • Robustness checks: placebo tests, alternative clustering, winsorization, randomization inference
  • Extensions: real prices, extensive margin, efficiency, winner composition, heterogeneity by item value and PBU type
  • MkDocs documentation site

January 2021 (First Version)

  • Initial manuscript with core DiDiR results
  • 4 main outcome variables: prices, firms, bids, distance
  • 3 time windows with baseline and PBU-controlled specifications