Original collectionUnder development

Under development — library extension. This report is part of the expanded-library work, not the original collection. Source preparation, methods and results are subject to revision.

Provisional eligibility assessment — under development. Deep DiD follow-up: Published page 597 independently reports Perth-versus-other-cities DiD 3.49 cpl (SE 0.39). The cited code only computes Perth pre/post means; it does not reproduce that multicity estimate. Obtain the exact comparison-city series and specification. Endogenous coordination timing and source-data access remain separate questions. This working assessment is not fully vetted and may change. See the report below for its recorded replication or assessment status. Provisional eligibility log

Learning to Coordinate: A Study in Retail Gasoline

David P. Byrne; Nicolas de Roos (2019). American Economic Review.

Under development — community extension. This is a provisional source-design assessment, not a new successful replication or a final eligibility ruling.

Extension index · Provisional eligibility log · Assessment JSON · QMD · Reproduction code

Source design and template applicability

The supplied empirical targets concern gasoline-price cycles, alignment and margins. There is no selected binary treatment with an adoption/control contrast for this template.

No DiD estimates, uncertainty intervals or homogeneity-test decision were computed in this tranche. No point is added to the calibration plots. This is not a zero effect or a failed statistical test.

Recorded treatment-column measurement

Not applicable.

The selected descriptive price-coordination/event-sequence analysis has no single exogenous treatment column.

These are the existing data-measured counts, not counts inferred from design labels. A binary instrument, group indicator or interaction component need not be the treatment of interest; the source-design assessment above takes precedence for template applicability.

Replication status

This tranche: unsupported design; source code/documentation inspected, no estimator run.

Supplied library: no_did_analysis_data; verification: no scalar DiD target; preparation: runs_with_shim. These are the library’s labels, not new verification claims. Missing data and unsupported designs are separate issues.

Evidence and provenance

The following files in the supplied library were inspected. Their SHA-256 digests are recorded in the downloadable assessment JSON. Source archives and microdata are not redistributed.

• AER/Byrne_de_Roos_AER_2019_113176/R/138_byrne_de_roos_replicate.R (247 lines)
• AER/Byrne_de_Roos_AER_2019_113176/verdict.md (48 lines)
• AER/Byrne_de_Roos_AER_2019_113176/aeraej-138.md (110 lines)