Table 3. Fixed effects parameter estimates and standard errors of the KSR model given by Eq. (2) and the model for the number of new branches given by Eq. (3).

Model	Parameter	Estimate	S.E.	P-value
Equation (2)	a 1	−0.3956	0.11947	<0.0001
	a 2	4.1717	0.23896	<0.0001
	a 3	−0.0114	0.00169	<0.0001
Equation (3)	b 1	1.7864	0.15040	<0.0001
	b 2	0.0354	0.00934	<0.0001
	b 3	0.0153	0.00105	<0.0001
	b 4	−0.0006	0.00024	<0.0001