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: The code estimates eight individual policies jointly and separately (lines 42–50), not only their average index. The source flags this as an absorbing candidate but its own pattern says absorbing status unverified. Code alone does not establish 0/1 support or no reversals: stateTakeup.do recodes selected fields, constructs veh by addition and noShortCert with a missing-value rule. Restore external inputs, count each actual policy and check transitions; choose one authored target and retain other-policy controls. This working assessment is not fully vetted and may change. See the report below for its recorded replication or assessment status. Provisional eligibility log

The Decline in Long-Term Unemployment and SNAP Take-Up

Ganong; Liebman (2018). American Economic Journal: Economic Policy.

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 target decomposes SNAP enrollment, eligibility and spending changes; it is not an outcome-on-binary-adoption regression. Required SNAP QC preparation inputs are also missing.

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

Preparation blocked.

The SNAP QC inputs and snap_src.zip required by the source preparation are missing; other deposited survey files do not contain the selected prepared treatment.

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: needs_helper_files. 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.

• AEJ-Policy/Ganong_Liebman_AEJ-Policy_2018_114600/R/01_replicate_empirical_results.R (398 lines)
• AEJ-Policy/Ganong_Liebman_AEJ-Policy_2018_114600/aeraej-543.md (77 lines)