(1) Hqd

(2) Hqd

(3) Hqd

(4) Hqd

Difi

0.000105^*** (4.23)

Bdf

0.000112^*** (4.41)

Ddf

0.000117^*** (4.86)

Ddfi

0.0000491^** (2.71)

_cons

0.271^***

0.272^***

0.269^***

0.280^***

N

310

310

310

310