Changelog
Version history and corrections. Transparency about what changed and when is part of the methodology.
2026-08-12 — live collector active
Real data now flowing. A daily collector pulls prices from Jumbo Argentina's public catalog (VTEX) into the index; the synthetic seed used during development has been removed. The series restarts at base = 100 on 2026-08-12; the 30-day rate populates as more days are collected.
2026-08 — v0-simple-avg (initial)
Initial release. Estimator: unweighted mean of daily price relatives, base = series start. Coverage: Argentina (Buenos Aires), food & beverages, ~40 SKUs. API and MCP endpoints published at api.oscar-lopez.com.
Planned
- Additional retailers (multi-store average) beyond Jumbo.
- v1 estimator: geometric mean within category + Laspeyres across categories.
- Citable methodology note with DOI (SSRN/Zenodo).
- Coverage expansion (additional categories/cities).