# Data audit (P1)

Matches bundle.json hash. Parameters: alpha=0.36, beta=0.95, y_min=0.05, y_max=5.0, grid_points=400, grid_spacing=log, vfi_tolerance=1e-8, eval_y = 0.5, 1.0, 2.0. No missing values, no duplicate parameter names, no dates (theoretical parameters). Units: output units; utils for value. Anomalies: none. 0<alpha<1, 0<beta<1 as required for the closed form and contraction. Note: the eval points are not grid nodes (log step 0.01154 from ln 0.05) -> interpolation needed (recorded in data_issues). Grid adequacy: closed-form optimal y' = (alphabetay)^alpha ranges over [0.231, 1.21] for y in [0.05, 5], inside the grid; steady state y* = 0.547. Confirmed in run: policy never hits grid bounds. Information-availability: no violating inputs; only model.csv is used. Exclusions: none (out/exclusions.csv, 10 -> 10 rows).