研究税制改革与居民消费的关系,加入虚拟变量(改革前iit=0,改革后iit=1),最后结果为显著为负,但不知道怎么解释虚拟变量与因变量的关系。特向各位大神求助!
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cr | Coef. Std. Err. t P>|t| [95% Conf. Interval]
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iitr | -25.85103 6.731426 -3.84 0.000 -39.4356 -12.26646
yr | .5721402 .0456223 12.54 0.000 .4800707 .6642097
iit | -.0556253 .0164182 -3.39 0.002 -.0887586 -.022492
ir | 15.0989 7.939697 1.90 0.064 -.9240521 31.12186
rpu | .1568561 .0385345 4.07 0.000 .0790904 .2346219
_cons | .054165 .0354195 1.53 0.134 -.0173144 .1256444
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