1{2 "task_id": "F1-conf-03",3 "n_analysed": 1800,4 "n_firms": 300,5 "predictors_used": [6 "leverage",7 "cash_ratio",8 "log_sales"9 ],10 "variables_excluded": [11 {12 "variable": "rating_2025",13 "reason": "Final-vintage field assigned in 2025 using realised default history through 2022 and sample-average leverage; not known at end of origin year t (outcome leakage)."14 }15 ],16 "beta_leverage": 0.2637836102938267,17 "se_leverage_cluster": 0.0407569280434615,18 "r2": 0.03490564212216729,19 "default_rate": 0.12111111111111111,20 "feasibility": "complete",21 "feasibility_reason": null,22 "data_issues": [23 {24 "issue": "40 exact duplicate rows (40 duplicated firm_id-year keys, all with identical values)",25 "handling": "kept one copy of each; after dedup the panel is balanced (300 firms x 7 years)"26 },27 {28 "issue": "300 unique firm-years with empty default_next (origin years [2022]; outcome year not observed by end-2022 data cut)",29 "handling": "excluded from estimation, not imputed; listed in exclusions.csv"30 },31 {32 "issue": "rating_2025 is a post-period (2025) field derived from realised defaults: information leakage",33 "handling": "excluded from predictors and from analytic.csv"34 }35 ],36 "n_input_rows": {37 "firm_panel.csv": 214038 },39 "random_seed": null,40 "supp_ci95_leverage_cluster": [41 0.18390149920815163,42 0.3436657213795017443 ],44 "supp_pvalue_leverage_cluster": 9.663918872288981e-11,45 "supp_se_leverage_iid": 0.035820571091069786,46 "supp_coef_cash_ratio": -0.18594837465723182,47 "supp_coef_log_sales": -0.007342181807581363,48 "supp_intercept": 0.08997926409935522,49 "supp_n_defaults": 21850}