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. The flooding regressions use continuous wetland changes and related exposure terms in panel/long-difference specifications. Wetland acreage changes are not a binary treatment. This working assessment is not fully vetted and may change. See the report below for its recorded replication or assessment status. Provisional eligibility log

Wetlands, Flooding, and the Clean Water Act

Charles A. Taylor; Hannah Druckenmiller (2022). 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 flooding regressions use continuous wetland changes and related exposure terms in panel/long-difference specifications. Wetland acreage changes are not a binary treatment.

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

47,864 distinct nonmissing values in wetland_change.

Wetland change in the deposited ZIP-year panel, before outcome-completeness restrictions. N=132,480; missing=33,120. Frame: source_treatment_data. Source: replication_files/data/final/zip_PANEL_data.csv.

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: verified; verification: verified; 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/Taylor_Druckenmiller_AER_2022_153221/R/3_taylor_druckenmiller_figure.R (111 lines)
• AER/Taylor_Druckenmiller_AER_2022_153221/R/3_taylor_druckenmiller_replicate.R (297 lines)
• AER/Taylor_Druckenmiller_AER_2022_153221/verdict.md (85 lines)
• AER/Taylor_Druckenmiller_AER_2022_153221/aeraej-3.md (332 lines)