Table 4: Results of regressions run using , and GMM Models, the dependent variable is exportation ( ).

Variables GMM
(1)(2)(3)(4)(5)(6)a

0.82*
(0,07)
0.54*0.53*0.43*0.46*0.13ns
(0.08)(0.09)(0.06)(0.05)(0.11)
1.54*0.96*0.964*0.41***0.76**
(0.40)(0.37)(0.24)(0.23)(0.30)
−0.11*−0.07**−0.064*−0.03***−0.057**
(0.04)(0.03)(0.02)(0.02)(0.02)
0.87*1.04*0.96*1.18*0.22***
(0.13)(0.19)(0.09)(0.11)(0.13)
Central West−0.26ns0.16ns
(0.38)(0.29)
Northeast−0.02ns−0.20ns
(0.45)(0.22)
North1.01*1.19*
(0.46)(0.27)
South0.85*0.91*
(0.29)(0.19)
Constant−12.29*−13.12*−10.32*−12.18*−5.10*
0.950.96
AR(2) (2nd order serial correlation, P value)0.69
Sargan test0.74
(inflection point)b7.06.97.56.86.7
Number of observations324324324324297

Source: estimated by the authors.
*Indicates level of significance of 1%; **indicates level of significance of 5%; ***indicates level of significance of under 10%, ns: nonsignificant. Robust std error are in parentheses; aTime dummies are not reported; bsee endnote number 12.