Table 6.

Regression analysis

Seemingly unrelated regression
Equation	Obs	Parms	RMSE	“R-sq”	chi2	P
qual_life	266	13	.2786898	0.1193	133.91	0.0000
environment	266	11	.405998	0.0978	93.44	0.0000
commerce	266	32	.2217602	0.1780	87.95	0.0000
area_growth	266	14	.2425586	0.1130	33.87	0.0022

Here we estimate a system of equations where we allow the error terms to be correlated. The estimates are based on linear probability models, with heteroskedasticity robust standard errors