Handling the measurement error problem by means of panel data: Moment methods applied on firm data

y, x

b

^β Dx

b

^βDy

b

^β Dxy

-~⅛-
^βDx

-~⅛-
^βDy

X ^{2( β} Dx )

X²(βe_Dy)

lnM,lnQ

1.0766

1.1102

1.0726

1.0680

1.0820

43.12

81.97

(0.0150)

(0.0162)

(0.0155)

(0.0119)

(0.0123)

(0.6340)

(0.0012)

ln Q, ln M

0.8847

0.9204

0.8853

0.9119

0.9301

90.18

44.50

(0.0140)

(0.0131)

(0.0145)

(0.0101)

(0.0102)

(0.0002)

(0.5769)

lnK,lnQ

1.0713

1.2134

1.0818

1.0854

1.2543

193.21

220.93

(0.0430)

(0.0477)

(0.0435)

(0.0324)

(0.0398)

(0.0000)

(0.0000)

lnQ, lnK

0.5591

0.7048

0.5559

0.5377

0.7075

225.95

193.33

(0.0198)

(0.0243)

(0.0198)

(0.0170)

(0.0198)

(0.0000)

(0.0000)

Chemicals: N = 229, T

=8

y, x

b

^β Dx

b

^βDy

b

^β Dxy

-~⅛-
^βDx

-~⅛-
^βDy

X ^{2( β} Dx )

X²(βe_Dy)

lnM,lnQ

1.0166

1.0540

1.0263

1.0009

1.0394

54.29

81.64

(0.0245)

(0.0241)

(0.0251)

(0.0135)

(0.0138)

(0.2166)

(0.0013)

ln Q, ln M

0.9205

0.9609

0.8972

0.9323

0.9815

87.10

57.90

(0.0230)

(0.0239)

(0.0231)

(0.0122)

(0.0130)

(0.0003)

(0.1324)

ln K, ln Q

0.9706

1.2497

0.9579

1.0051

1.2672

90.42

85.36

(0.0583)

(0.0633)

(0.0582)

(0.0336)

(0.0489)

(0.0001)

(0.0005)

lnQ, lnK

0.5550

0.7459

0.5637

0.5700

0.7762

96.70

89.57

(0.0317)

(0.0374)

(0.0314)

(0.0236)

(0.0273)

(0.0000)

(0.0002)