Public-private sector pay differentials in a devolved Scotland



308


Journal of Applied Economics

Table 1. Estimation results for males and three different model specifications

OLS
(no correction)

Univariate probit
correction

Bivariate probit
correction

(1)
Public

(2)

Private

(3)
Public

(4)

Private

(5)
Public

(6)

Private

Constant

1.715

1.931

1.020

2.256

0.810

2.124

(0.154)***

(0.077) *

**

(0.402) *

* (0.180) *

**

(0.459) *

(0.137)***

Age 16-20

-0.347

-0.568

-0.493

-0.586

-0.617

-0.637

(0.263)

(0.081) *

**

(0.407)

(0.164) *

(N)(BC)

**

(0.434)

(0.103)***

Age 21-30

-0.220

-0.151

-0.207

-0.186

-0.196

-0.173

(0.104) **

(0.055) *

**

(0.132)

(0.065) *

**

(0.130)

(0.064) ***

Married

0.162

0.161

0.193

0.124

0.256

0.159

(0.072) **

(0.048) *

**

(0.141)

(0.071)

(0.134) **

(0.070) ***

Member of union 0.125

0.060

0.255

0.080

0.246

0.076

(0.070) *

(0.052)

(0.093) *

** (0.054)

(0.086) ***

(0.055)

Professional

0.741

0.769

0.747

0.810

0.704

0.784

(0.156)***

(0.084) *

**

(0.198) *

** (0.102) *

**

(0.190)***

(0.100)***

Managerial

0.643

0.763

0.774

0.811

0.780

0.810

(0.107)***

(0.070) *

**

(0.134) *

** (0.082) *

**

(0.140) ***

(0.079) ***

Skilled

0.305

0.183

0.433

0.242

0.489

0.269

non-manual

(0.090) ***

(0.065) *

**

(0.133) *

** (0.078) *

**

(0.143) ***

(0.077) ***

Skilled manual

0.052

0.199

-0.135

0.134

-0.106

0.147

(0.102)

(0.061) *

**

(0.143)

(0.074) *

*

(0.138)

(0.071) **

Higher degree

-0.025

0.272

-0.046

0.225

0.003

0.256

(0.222)

(0.098) *

**

(0.294)

(0.132) *

*

(0.290)

(0.121) **

A-level

-0.050

0.058

-0.020

0.045

0.007

0.063

(0.082)

(0.048)

(0.109)

(0.062)

(0.105)

(0.059)

O-level

-0.100

-0.118

-0.156

-0.147

-0.165

-0.140

(0.093)

(0.054) *

*

(0.124)

(0.067) *

**

(0.122)

(0.061) ***

Job tenure

-0.006

0.001

0.013

0.015

0.007

0.011

(0.014)

(0.008)

(0.019)

(0.010)

(0.019)

(0.010)

Job tenure sq

0.000

-0.000

-0.000

-0.001

-0.000

-0.001

(0.001)

(0.000)

(0.001)

(0.000)

(0.001)

(0.000) *

Small

0.062

-0.341

-0.073

-0.431

-0.031

-0.404

(0.104)

(0.049) *

**

(0.140)

(0.062) *

**

(0.130)

(0.058) ***

Medium

0.047

-0.267

-0.010

-0.313

0.024

-0.291

(0.093)

(0.054) *

**

(0.115)

(0.065) *

**

(0.109)

(0.060) ***



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