区域经济、城镇化对铁矿石需求的影响研究——基于27国样本
贾立文, 徐德义

Regional economic and urbanization effects on iron ore demand based on a sample of 27 countries
JIA Liwen,XU Deyi
表5 下降型国家的模型系数
Table 5 Parameters for decreasing countries model
变量 模型5 模型6 模型7 模型8 模型9
C 2.463***
(0.282)
6.666***
(1.918)
10.246***(2.012) 10.102***(1.897) 4.140**
(1.971)
PGDP-USA(美国) -0.638
(1.009)
0.931
(1.209)
4.079***
(1.182)
2.902**
(1.166)
-4.974** (2.028)
PGDP-CAN(加拿大) 4.364***
(1.020)
5.758***
(1.193)
6.678***
(1.053)
7.417***
(1.004)
0.213
(1.893)
PGDP-MEX(墨西哥) -1.428***(0.464) -0.915*
(0.518)
-1.229***(0.473) -1.000**
(0.446)
-0.608
(0.471)
PGDP-PER(秘鲁) -24.064** (10.281) -31.803***(6.866) -40.979***(5.973) -27.210***(5.901) -14.017** (5.493)
PGDP-ESP(西班牙) -3.932**
(1.570)
-1.958
(1.834)
-1.074
(1.669)
1.304
(1.601)
-2.016
(1.894)
PGDP-GBR(英国) 1.704
(2.203)
4.461**
(2.182)
8.489***
(2.050)
7.087***
(2.019)
1.808**
(2.431)
PGDP-BEL(比利时) -35.029***(7.134) -18.991* (10.873) -1.280
(10.497)
4.324
(9.951)
-44.628***(14.794)
CIT - -0.063**
(0.029)
-0.157***(0.031) -0.154***(0.029) -0.069**
(0.031)
IND - - 0.119***
(0.014)
0.090***
(0.013)
0.051***
(0.013)
TEC - - - 0.036***
(0.007)
0.025**
(0.010)
ENE - - - - 0.460***
(0.100)
Wald卡方统计量 317.200*** 648.250*** 1 294.690*** 1 416.260*** 2 268.270***
样本数 105 105 103 103 103