{
  "seed": 20260911,
  "repetitions": 200,
  "estimator": "DiD equal-geo stratified change contrast",
  "estimand": "constant additive assignment effect",
  "dgp": "8 dates; 4 baseline/4 test; geo intercepts; common time trend; AR(1) errors rho=.6; complete fixed-count randomisation; optional unequal strata and heterogeneous variances",
  "limitations": "No missingness, spillover, non-adherence, treatment heterogeneity, CRT or bootstrap coverage study",
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    "numpy": "2.3.5",
    "pandas": "2.3.3",
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