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

y, x

b

^βDx

b

^βDy

b

^β Dxy

-~⅛-
^βDx

-~⅛-
^βDy

X ^{2( β} Dx )

X²(βe_Dy)

ln M, ln Q

1.0821

1.1275

1.0900

1.0546

1.0825

51.71

70.39

(0.0331)

(0.0346)

(0.0350)

(0.0173)

(0.0169)

(0.2950)

(0.0152)

lnQ,lnM

0.8404

0.8931

0.8064

0.8917

0.9244

86.55

59.08

(0.0283)

(0.0283)

(0.0363)

(0.0143)

(0.0148)

(0.0004)

(0.1112)

ln K, ln Q

0.5095

0.6425

0.5004

0.5239

0.6092

115.68

121.29

(0.0735)

(0.0700)

(0.0745)

(0.0407)

(0.0314)

(0.0000)

(0.0000)

lnQ, lnK

0.4170

0.6391

0.4021

0.4499

0.6495

130.50

133.94

(0.0409)

(0.0561)

(0.0382)

(0.0248)

(0.0330)

(0.0000)

(0.0000)

Wood and Wood Products: N =

603, T =8

y, x

b

^β Dx

b

^βDy

b

^β Dxy

-~⅛-
^βDx

-~⅛-
^βDy

X ^{2( β} Dx )

X²(βe_Dy)

ln M, ln Q

1.0604

1.0784

1.0632

1.0615

1.0772

63.97

90.28

(0.0123)

(0.0124)

(0.0128)

(0.0089)

(0.0098)

(0.0502)

(0.0002)

lnQ,lnM

0.9171

0.9362

0.9117

0.9195

0.9370

91.40

64.13

(0.0106)

(0.0108)

(0.0115)

(0.0083)

(0.0078)

(0.0001)

(0.0489)

ln K, ln Q

0.7454

0.8906

0.7494

0.8094

0.9398

290.60

281.57

(0.0409)

(0.0439)

(0.0425)

(0.0305)

(0.0310)

(0.0000)

(0.0000)

ln Q, ln K

0.4862

0.6003

0.4806

0.5261

0.6377

283.25

280.65

(0.0229)

(0.0258)

(0.0223)

(0.0189)

(0.0212)

(0.0000)

(0.0000)