针对城市特征对劳动力流动的影响,以劳动力选择为因变量,城市特征为自变量,单个回归都是正的,为啥clogit回归的系数为什么是负的呢?clogit choice y jiaoyu yiliao jichu wenyu,group(id)
choice jiaoyu yiliao jichu wenyu
1 1 1 1 1
0 .850213 .6907057 .4655181 .1854306
0 .634558 .5259556 .2847595 .0978504
0 .73628 .6367316 .4333001 .0734673
0 .814364 .5691519 .277654 .0136807
0 .56573 .4233962 .3025565 .0764891
0 .580278 .4644086 .2137758 .0394825
0 .664171 .3762092 .1898896 .0501743
0 .701063 .5281939 .2710545 .0306606
0 .761332 .6765241 .3615614 .0347257
0 .707424 .4211574 .2035728 .0513743
0 .722923 .4456389 .2631239 .0405277
0 .673194 .436167 .1729678 .0217366
1 1 1 1 1
0 .850213 .6907057 .4655181 .1854306
0 .634558 .5259556 .2847595 .0978504
0 .73628 .6367316 .4333001 .0734673
0 .814364 .5691519 .277654 .0136807
0 .56573 .4233962 .3025565 .0764891
0 .580278 .4644086 .2137758 .0394825
0 .664171 .3762092 .1898896 .0501743
0 .701063 .5281939 .2710545 .0306606
0 .761332 .6765241 .3615614 .0347257
0 .707424 .4211574 .2035728 .0513743
0 .722923 .4456389 .2631239 .0405277
0 .673194 .436167 .1729678 .0217366