变量	被解释变量：企业环保投入
talk	1.854^***
talk	(0.565)
L.soe	1.085^**
L.soe	(0.430)
L.size	0.590^***
L.size	(0.210)
L.flow	−4.787^**
L.flow	(1.916)
L.First	−0.295
L.First	(0.921)
L.age	0.00775
L.age	(0.0440)
L.leve	−1.353
L.leve	(0.898)
L.roa	0.754
L.roa	(0.922)
L.board	−0.295
L.board	(0.921)
L.cash	0.675^***
L.cash	(0.249)
Constant	−13.54^***
Constant	(4.877)
观测值	763
R-squared	0.508