回归之后
没有回归结果,请教!
至少显著性应该出来的吧?
显著性都不出来,我觉得得很奇怪!
而且用correlate计算线性系数也不出结果。
语句如下
. tobit lognewproductsales1 opennessproduc1 rdintensity logsize1 startup geomarket industry21 industry22 industry24 industry25 industry26, ll
结果:
note: industry24 omitted because of collinearity
note: industry25 omitted because of collinearity
note: industry26 omitted because of collinearity