{
  "panel_did": {
    "test": "Panel DiD (log FV ~ treated + LGA FE + year FE)",
    "coefficient": 0.062021,
    "pct_effect": 6.398475,
    "std_error": 0.014725,
    "p_value": 2.5e-05,
    "ci_95": [
      0.033161,
      0.090881
    ],
    "n_obs": 1263,
    "r_squared": 0.988214,
    "interpretation": "Having any DRFA event is associated with a +6.4% change in FV incidents (p=0.0000). Statistically significant at the 5% level."
  },
  "dose_response": {
    "test": "Dose-response (log FV ~ n_events + LGA FE + year FE)",
    "coefficient_per_event": 0.029993,
    "pct_effect_per_event": 3.044741,
    "std_error": 0.006609,
    "p_value": 6e-06,
    "ci_95": [
      0.01704,
      0.042946
    ],
    "n_obs": 1263,
    "r_squared": 0.98822,
    "interpretation": "Each additional DRFA event is associated with a +3.04% change in FV incidents (p=0.0000). Statistically significant at the 5% level."
  },
  "pre_trend": {
    "test": "Pre-trend Welch's t-test (high/medium vs baseline, 2011\u20132019)",
    "exposed_mean": 12.511983,
    "exposed_sd": 22.002366,
    "exposed_n": 459,
    "baseline_mean": 8.794444,
    "baseline_sd": 12.207542,
    "baseline_n": 18,
    "difference": 3.717538,
    "t_statistic": 1.216819,
    "p_value": 0.236806,
    "interpretation": "Pre-trend difference is not significant \u2014 parallel trends assumption holds."
  },
  "post_divergence": {
    "test": "Post-disaster Welch's t-test (high/medium vs baseline, 2020\u20132025)",
    "exposed_mean": 5.016993,
    "exposed_sd": 13.485829,
    "exposed_n": 306,
    "baseline_mean": 0.008333,
    "baseline_sd": 10.27773,
    "baseline_n": 12,
    "difference": 5.00866,
    "t_statistic": 1.633907,
    "p_value": 0.127131,
    "interpretation": "Post-disaster divergence is not statistically significant."
  },
  "event_study_1037": {
    "test": "Event study: AGRN 1037 (Oct 2022 floods)",
    "n_affected_lgas": 65,
    "event_year_vs_pre": {
      "event_year_mean": 1.008014,
      "pre_mean": 11.155699,
      "difference": -10.147686,
      "t_statistic": -6.5711,
      "p_value": 0.0
    },
    "year_after_vs_pre": {
      "year_after_mean": 4.354506,
      "pre_mean": 11.155699,
      "difference": -6.801194,
      "t_statistic": -3.179224,
      "p_value": 0.002078
    },
    "affected_vs_baseline_post": {
      "affected_mean": 2.68126,
      "baseline_mean": 0.793672,
      "difference": 1.887587,
      "t_statistic": 0.383122,
      "p_value": 0.724409
    }
  },
  "correlation": {
    "test": "Correlation: total DRFA events vs FV % change (2019\u21922025)",
    "n": 79,
    "pearson_r": 0.106389,
    "pearson_p": 0.350723,
    "pearson_ci_95": [
      -0.117489,
      0.319976
    ],
    "spearman_rho": 0.253574,
    "spearman_p": 0.024141,
    "interpretation": "Pearson r = 0.106 (p = 0.3507), Spearman \u03c1 = 0.254 (p = 0.0241). At least one significant at the 10% level."
  },
  "summary": {
    "test": "Summary statistics by exposure group",
    "groups": [
      {
        "group": "high",
        "n_lgas": 12,
        "pre_mean": 13.618519,
        "pre_sd": 21.563617,
        "pre_n": 108,
        "post_mean": 4.465278,
        "post_sd": 11.604396,
        "post_n": 72
      },
      {
        "group": "medium",
        "n_lgas": 39,
        "pre_mean": 12.17151,
        "pre_sd": 22.154837,
        "pre_n": 351,
        "post_mean": 5.186752,
        "post_sd": 14.03245,
        "post_n": 234
      },
      {
        "group": "low",
        "n_lgas": 26,
        "pre_mean": 11.218455,
        "pre_sd": 23.24221,
        "pre_n": 233,
        "post_mean": 4.942308,
        "post_sd": 17.216789,
        "post_n": 156
      },
      {
        "group": "baseline",
        "n_lgas": 2,
        "pre_mean": 8.794444,
        "pre_sd": 12.207542,
        "pre_n": 18,
        "post_mean": 0.008333,
        "post_sd": 10.27773,
        "post_n": 12
      }
    ]
  }
}