Coding and classification standards
The following international standards for coding and classification were used:
- economic activity (the sector in which the respondent works): coded according to NACE Rev.1.1, 2-digit version
- occupation: recorded verbatim and coded according to ISCO 88 (COM)
- education: coded according to modified version of ISCED-97
Sector
Section
|
Sub-section
|
Economic activity
|
No. of Digits
|
---|---|---|---|
A, B
|
agriculture, hunting and forestry + fishing
|
1 digit
|
|
C
|
mining and quarrying
|
1 digit
|
|
D
|
manufacturing
|
2 digits
|
|
15+16
|
food products, beverages and tobacco
|
||
17+18+19
|
textiles, clothing and leather
|
||
20+21
|
wood industry, paper
|
||
22
|
publishing, printing
|
||
23+24+25+26
|
chemical, rubber, mineral
|
||
27+28+29+30
|
metal products and machinery
|
||
31+32+33
|
electrical and electronics, precision instruments
|
||
34+35
|
automobile and other transport equipment
|
||
36
|
furniture
|
||
E
|
electricity, gas and water supply
|
1 digit
|
|
F
|
Construction
|
1 digit
|
|
G
|
wholesale and retail trade, repair of motor vehicles, motorcycles and personal and household goods
|
1 digit
|
|
H
|
hotels and restaurants
|
1 digit
|
|
I
|
transport, storage and communication
|
2 digits
|
|
|
60
|
land transport
|
|
|
61+62+63
|
water,air sampling activities
|
|
|
64
|
post and telecommunications
|
|
J
|
|
financial intermediation
|
2 digits
|
|
65+67
|
financial intermediation and auxiliary activities
|
|
&
|
66
|
insurance
|
|
K
|
real estate, renting and business activities
|
1 digit
|
|
L
|
public administration and defence, compulsory social security
|
1 digit
|
|
M
|
education
|
1 digit
|
|
N
|
health and social work
|
1 digit
|
|
O
|
other community, social and personal service activities
|
1 digit
|
|
P+Q
|
private households with employed persons, extra-territorial organisations and bodies
|
1 digit
|
Occupation
1
|
Legislators, senior officials and managers
|
(1 digit)
|
2
|
Professionals
|
(1 digit)
|
3
|
Technicians and associate professionals
|
(1 digit)
|
4
|
Clerks
|
(1 digit)
|
5
|
Service workers and shop and market sales workers
|
(1 digit)
|
6
|
Skilled agricultural and fishery workers
|
(1 digit)
|
7
|
Craft and related trades workers
|
(1 digit)
|
8
|
Plant and machine operators and assemblers
|
(1 digit)
|
9
|
Elementary occupations
|
(1 digit)
|
10
|
Armed forces
|
(1 digit)
|
The type of occupation is defined according to the International Standard Classification of Occupations, ISCO-88, 1-digit level. In the survey, four categories of employees are distinguished:
- high skilled white collar (ISCO codes 1,2 and 3) includes legislators, senior officials and managers, professionals and technicians and associate professionals;
- low skilled white collar (ISCO codes 4 and 5) includes clerks and service workers and shop and market sales workers;
- high skilled blue collar (ISCO codes 6 and 7) includes skilled agricultural and fishery workers and craft and related trades workers;
- low skilled blue collar (ISCO codes 8 and 9) includes plant and machine operators and assemblers and elementary occupations.
Armed forces are excluded.
Education
The respondents were divided into 6 categories of educational level, based on an adapted version of ISCED-97:
no education
|
ISCED 0
|
primary education
|
ISCED 1
|
lower secondary education
|
ISCED 2
|
higher secondary education
|
ISCED 3
|
post-secondary non-tertiary education
|
ISCED 4
|
university degree
|
ISCED 5
|
postgraduate studies
|
ISCED 6
|