Data Availability Statement for double-anonymous review

An anonymised reproducibility archive is supplied as Online Resource 2. It contains the 17-column source-aligned quarterly panel, its exact six-column computational projection, source manifest, proxy dictionary, event anchors, registered parameters, computational scripts, generated outputs, checksums, and technical-verification documentation. The permanent public repository citation is withheld from the blinded manuscript and is supplied confidentially through the submission system or title page.

Running `python scripts/verify_reported_results.py` verifies the exact source projection and regenerates the baseline empirical tables, figures, sensitivity analyses, and control calculations. Running `python scripts/run_qaq_extension.py` regenerates the added benchmark and simulation analyses. Provider-level files governed by third-party licences or terms are not redistributed.
