(1)

(2)

RD

RD

L.EDI

0.084^***

0.055^***

(0.018)

(0.017)

企业规模(SIZE)

0.422^***

0.107^**

(0.075)

(0.055)

资产负债率(LEV)

0.414

−0.054

(0.261)

(0.235)

总资产周转率(ATO)

−2.303^***

−2.493^***

(0.143)

(0.125)