475 firms: Equation (4) | α | β | γ |
Constrained OLS* | |||
Estimated coefficients | 0.30856 | 0.86762 | 0.132377 |
t-statistic | (0.320) | (18.866) | (2.878) |
standard error | 0.964 | 0.046 | 0.046 |
Constrained OLS*, with the constant suppressed | |||
Estimated coefficients | NC | 0.87705 | 0.12295 |
t-statistic | (24.857) | (3.485) | |
standard error | 0.035 | 0.035 |