ECS 2009 - Sampling

Sampling

The unit of enquiry for the survey was the establishment (in the case of multi-site enterprises the local unit). Only the establishments with 10 or more employees were included in the survey. The establishments which were active in agriculture or fishing, private households and the extraterritorial organisations were excluded. The survey covers organisations from both the private and public sectors. The survey universe comprises some 3.2 million establishments, with about 145 million employees in the 30 countries under consideration.

The sampling for the ECS was done on the basis of a matrix, where the universe in each country was divided into 10 cells defined by five size classes and two main sectors of activity – the ‘industries’ sector and the ‘services’ sector. The targets for the sampling matrix were set in such a way so that each cell had a sufficiently high number of net interviews. Larger establishments were therefore deliberately overrepresented in the net sample. A weighting procedure was then applied to correct this disproportionate sample structure.
The table below gives an overview of the number of establishments and the number of management and ER interviews per country.

 

Country

Number of establishments

Management interviews

ER interviews

AT

48,000

1,016

205

BE

54,000

1,016

287

BG

37,000

502

128

CY

5,000

505

60

CZ

79,000

1,014

242

DE

564,000

1,500

558

DK

34,000

1,023

394

EE

13,000

500

72

EL

57,000

1,005

76

ES

282,000

1,509

375

FI

27,000

1,000

565

FR

327,000

1,500

441

HU

69,000

1,045

183

IE

20,000

503

93

IT

300,000

1,502

320

LT

24,000

560

128

LU

4,000

501

164

LV

17,000

509

147

MT

2,000

349

24

NL

96,000

1,002

249

PL

176,000

1,500

367

PT

83,000

1,012

39

RO

119,000

500

137

SE

74,000

1,001

541

SI

13,000

536

153

SK

42,000

520

100

UK

445,000

1,510

166

EU27

3,011,000

24,640

6,214

HR

18,000

500

162

MK

6,000

520

129

TR

179,000

1,500

64

Total 30 countries

3,214,000

27,160

6,569

Source: European Company Survey 2009 - Overview, Eurofound (2010)

The management interviews were carried out in 27,160 establishments from the total of 3.2 million establishments. The number of management interviews per country ranges from almost 350 in Malta to about 1,500 interviews in the largest countries. If possible, an employee representative (ER) was interviewed in addition to the management interview. The number of ER interviews with ER is considerably lower than the number of management interviews as not all companies have an official employee representative body (roughly only half of them) and not all ERs were willing to participate in the survey. Where an employee representative body exists within the establishment, the response rate is approximately 50%.