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spb/wp29_uqo

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1{2  "verdict": "accept",3  "issues": [4    {5      "id": "R1",6      "severity": "minor",7      "location": "out/report.md (Limitations); results.json data_issues[3]",8      "issue": "Repeated defaults are disclosed, but how big the issue is was not measured. In the analytic sample, 59 firms default more than once and 406 firm-years come after an earlier recorded default; 19.5% of those default again. Without numbers, a reader can't judge how much beta_leverage could shift if default were absorbing.",9      "suggested_fix": "Report the count of post-default firm-years. Optionally add a sensitivity estimate that keeps only firm-years up to and including the first default."10    },11    {12      "id": "R2",13      "severity": "minor",14      "location": "results.json data_issues[4]; report.md Limitations",15      "issue": "The text says leverage is 'bounded exactly at 0.02 and 0.95', but the two bounds are hit very unevenly: 57 raw rows sit at 0.02 and only 2 at 0.95. Saying 'truncation' without counts overstates the evidence at the upper bound.",16      "suggested_fix": "Give the number of rows at each bound."17    },18    {19      "id": "R3",20      "severity": "minor",21      "location": "results.json supplementary.ci95_leverage_cluster",22      "issue": "The 95% CI uses normal critical values even though there are 300 clusters. This is disclosed and has negligible impact, but a t(G-1) critical value is the usual convention.",23      "suggested_fix": "Optionally use t with G-1 degrees of freedom, or keep the current method and its note."24    }25  ],26  "summary": "Re-running analysis.py in a scratch copy reproduces results.json and analytic.csv exactly. All required keys are present and correctly typed. The code removes rating_2025, which is a 2025 field built from realised defaults; in the data every default carries rating D, so this is real look-ahead leakage. The code drops 40 exact duplicate rows (the duplicated firm-year keys and the exact duplicates are the same 40 rows) and 300 firm-years from origin year 2022 with no observed outcome, without imputing them. This gives 1800 firm-years from 300 firms, 6 years each. The exclusion ledger chains correctly from 2140 rows to 1800. The model matches the task's estimand: OLS linear-probability model with firm-clustered SEs, and the baseline default rate is reported. Claims C1–C4 match the numbers. The interpretation of beta (2.6 pp per 0.1 of leverage) is correct, and caveats about association vs causation and the linear-probability model are present. Only minor disclosure points remain."27}28
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