Growth and Technological Leadership in US Industries: A Spatial Econometric Analysis at the State Level, 1963-1997

Table 7. Endogenous Growth Model with Diagnostics for Spatial Models (continued).

Sectors Models ^a Variables	______________T ransp Ortation / U tilities______________
	OLS ___	GM-HET_______		OLS
	OLS ___	Low	High	OLS
Constant	-0.169	0.25	-0.197	-0.197
Human capital	0.008	0.012	0.002	0.027***
Spillover human capital	0.020***	0.015	0.021***	-0.011*
Spatial domestic effect	-0.028*	-0.140**	0.002	-0.027***
Catch-up	0.025**	0.090**	0.005	0.019***
Log labor ratio	-0.880***	0.039	-1.105***	-0.653***
Log capital ratio	0.391***	-0.033	0.490***	0.303***
Spatial AR parameter		-0.140*«
R² adjusted⁰	0.48			0.66
AIC	-70.57			-95.10
LIK	42.29			54.55
JB	2.32			0.16
BPd	7.87			8.80
Chow-Wald^e		9.17
I	-0.05			0.04
LM-error	0.27			0.18
Robust LM-error	0.50			0.18
LM-Iag	0.04			0.06
Robust LM-Iag	0.28			0.06
LM-SARMA______	____________0.56___________			0.24
^,' Significance at the 1, 5 and 10% level is signaled by *, and *, respectively, ^b Spatial Autoregressive parameter of the spatial error model. ^cJarque Bera test of normality of errors. ^d Breusch-Pagan test with random coefficients as the alternative hypothesis.
^, Chow-Wald test for s	Itability of coefficients across regimes.

Services

Finance Insurance and Real Estate

______GM-HET______	OLS _____GM-HET
Low High	Low High

0.22***

3.78**

2.60*

1.55

0.37

4.15