[
 {"id":"C1","text":"The OLS Okun coefficient over 1960Q1-2019Q4 (n=240) is about -0.256 pp of unemployment per 1% of quarterly real GDP growth, with R^2 about 0.41.","results_keys":["beta_hat","r_squared","n_analysed","first_quarter","last_quarter"],"status":"supported","caveat":"Contemporaneous linear projection on current-vintage data; not causal and may vary over time."},
 {"id":"C2","text":"Using a Newey-West (Bartlett, 4 lags) standard error of about 0.036, the 95% CI for beta is about [-0.326, -0.186]; beta is negative and significantly different from zero at the 5% level.","results_keys":["se_hac","hac_lags","beta_ci_low","beta_ci_high","okun_negative_5pct"],"status":"supported","caveat":"Asymptotic normal inference; holds at every bandwidth from 0 to 12 lags."},
 {"id":"C3","text":"The naive iid standard error (about 0.020) understates uncertainty: the HAC SE is about 1.8 times larger because of residual autocorrelation and heteroskedasticity.","results_keys":["se_iid","se_hac"],"status":"supported","caveat":"Residual autocorrelations are reported in out/supplementary.json, not in results.json."}
]