1{2 "task_id": "F6-conf-03",3 "feasibility": "complete",4 "feasibility_reason": null,5 "data_issues": [6 {7 "issue": "UNRATE missing value(s) at ['2025-10-01'] (blank in raw FRED CSV)",8 "handling": "outside the 1959Q4-2019Q4 window; dropped with all post-2019Q4 observations, no effect on estimates"9 },10 {11 "issue": "Both series extend beyond 2019Q4 (to 2026) and are the 2026 vintage (revised, not real-time)",12 "handling": "all observations after 2019Q4 excluded before computation; vintage noted as limitation"13 }14 ],15 "n_input_rows": {16 "GDPC1.csv": 319,17 "UNRATE.csv": 94518 },19 "n_analysed": 240,20 "random_seed": null,21 "sample_start": "1960-01-01",22 "sample_end": "2019-10-01",23 "n_sub1": 96,24 "n_sub2": 144,25 "baseline_metric": 0.32465793964999184,26 "model_metric": 0.2497438816636253,27 "effect_estimate": -0.2557677277487258,28 "intercept": 0.18438835418210714,29 "effect_se": 0.03598488399675878,30 "hac_lags": 4,31 "effect_ci_low": -0.3262968043702248,32 "effect_ci_high": -0.18523865112722682,33 "beta_sub1": -0.25902105345680587,34 "beta_sub2": -0.27339263306757905,35 "chow_f_stat": 6.0903330062337675,36 "chow_p_value": 0.002636323851733417,37 "stability_conclusion": "unstable",38 "conclusion": "negative_effect",39 "ols_classical_se_full": 0.01996009291490984,40 "r_squared_full": 0.4082508284562034,41 "intercept_sub1": 0.2542326539884382,42 "intercept_sub2": 0.15168581347724602,43 "beta_sub1_hac_se": 0.03970255328838903,44 "beta_sub2_hac_se": 0.06879369233083424,45 "implied_zero_du_growth_full": 0.7209211099660549,46 "hac_slope_diff_p_value": 0.8548271295127585,47 "hac_intercept_diff_p_value": 0.25395491785679547,48 "hac_joint_break_f_stat": 5.372053278020056,49 "hac_joint_break_p_value": 0.0052299232796137185,50 "hac_se_lag_sensitivity": {51 "0": 0.028957130333809637,52 "2": 0.034370831642247524,53 "8": 0.03729120927832667,54 "12": 0.0365615094284336155 },56 "resid_variance_sub1": 0.07850312611325812,57 "resid_variance_sub2": 0.0482767452645052658}