1{2 "task_id": "F6-conf-03",3 "feasibility": "complete",4 "feasibility_reason": null,5 "data_issues": [6 {7 "issue": "UNRATE missing (blank) values at ['2025-10-01']",8 "handling": "All outside the 1959Q4-2019Q4 window; quarters with <3 valid months set to NaN; no effect on estimates."9 },10 {11 "issue": "Files extend beyond 2019Q4 (GDPC1 to 2026Q3, UNRATE to 2026-09); GDPC1 is the current vintage (revised data), not real-time.",12 "handling": "All quarters after 2019Q4 dropped before any computation of estimates; revised-vintage use 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": 0.03583463330296569,30 "hac_lags": 4,31 "effect_ci_low": -0.32600231842173816,32 "effect_ci_high": -0.18553313707571345,33 "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 "hac_se_sensitivity": {41 "0": 0.028836223207269963,42 "2": 0.03422732023615383,43 "8": 0.03713550417540189,44 "12": 0.036408851102280945 },46 "slope_break_hac_pvalue": 0.8536158012976183,47 "intercept_sub1": 0.2542326539884382,48 "intercept_sub2": 0.15168581347724602,49 "r_squared_full": 0.408250828456203450}