Table 6 Regression results with robust standard errors, for the circular economy model.
Variable | Beta | Standard error | t-stat | p-value | Robust standard error | Robust t-stat | Robust p-value |
|---|---|---|---|---|---|---|---|
Intercept | 4.177 | 0.045 | 93.586 | 0.000 | 0.027 | 155.291 | 0.000 |
Elections | − 0.301 | 0.062 | − 4.841 | 0.000 | 0.059 | − 5.107 | 0.000 |
PCA | 0.034 | 0.011 | 2.937 | 0.005 | 0.012 | 2.870 | 0.006 |