475 firms: Equation (3) | α | β | γ |
Constrained OLS* | |||
Estimated coefficients | 0.30739 | 0.86769 | 0.13230 |
t-statistic | (0.319) | (18.868) | (2.877) |
standard error | 0.946 | 0.046 | 0.046 |
Constrained OLS*, with the constant suppressed | |||
Estimated coefficients | NC | 0.87708 | 0.12292 |
t-statistic | (24.857) | (3.484) | |
standard error | 0.035 | 0.035 |