Slovakia - 2

Title of the survey

Labour cost survey.

Organization responsible

Statistical Office of the Slovak Republic.

Periodicity of the survey

Annual.

Objectives of the survey

To collect information on and assess the level and structure of labour cost incurred by employers in employing labour, by economic activity, region, type of ownership, legal status and size class of enterprises.

Main labour topics covered by the survey

Employment, earnings, hours of work and labour cost.

Reference period

The calendar year.

Coverage of the survey

Geographical

The whole country.

Industrial

All branches of economic activity.

Establishments

All types and sizes of establishments and enterprises.

Persons

Employees with a contract of employment.

Excluded are unpaid contributing family workers and the self-employed.

Occupations

Data are not collected by occupation.

Concepts and definitions

Employment

Employees are defined as persons working under a contract of employment, in exchange for a remuneration, irrespective of citizenship and duration of contract.

Employees include wage earners and salaried employees, working directors with an employment contract, trainees, workers on probation, piece workers, commission agents, casual, temporary and seasonal workers, and persons temporarily absent from work because of paid or unpaid (less than four weeks) leave, industrial dispute, sickness or accident, as well as persons temporarily present on payroll during notice period preceding retirement, resignation or dismissal. Apprentices are identified separately.

Excluded are home workers and working directors without employment contract, workers sub-contracted from other companies or temporary work agencies, persons on indefinite leave or lay off, women on maternity and extended maternity leave and men performing military or civil service.

Labour cost

Total labour costs represent the sum of costs incurred by employers for employees' remuneration, recruitment and training, as well as social welfare services. They include both direct labour costs and indirect labour costs, minus subsidies.

Direct labour costs include:

Indirect labour costs include:

Subsidies, i.e. the amounts received which are intended to refund part or all of the cost of direct remuneration, are deducted from total labour costs. Organizations based on contributions and budgetary organizations report and deduct the subsidies received from sources other than the State budget.

Data on labour costs are collected for all employees together, without any distinction (except for apprentices).

Hours of work

Data are collected on the total number of hours actually worked on an annual basis, separately by all employees (part- and full-time workers) and apprentices. These include normal hours of work; overtime; time spent on preparation of workplace, repair, maintenance, preparation and cleaning of tools, preparation of receipts, time sheets, reports, etc.; time spent at place of work during which no work is done but for which payment is made under a guaranteed employment contract; and time corresponding to short rest periods at the workplace including tea or coffee breaks.

Hours actually worked exclude hours paid for but not worked (for holidays, vacation, sick leave, time off, etc.).

International recommendations

The components of labour cost and the concept of hours actually worked used in this survey conform to the international guidelines.

Classifications

Components of labour cost

Data are classified by major group and sub-items of labour cost (see above, under Concepts and Definitions). This classification corresponds to the demand of Slovak users. Slight modifications are brought to the ordering of the components to meet EUROSTAT's requirements and ensure comparability with the European Community statistics on the structure of employers' labour costs.

Industrial

The survey data are classified according to the Statistical Classification of economic activities of the European Communities (NACE, Rev. 1), which is itself based on the International Standard Industrial Classification of All Economic Activities (ISIC), Rev.3, 1990.

Occupational

Not relevant.

Others

Labour cost data are classified by region (eight regions), type of ownership (nine categories), legal status and size class (0-10 employees, 11-24, 25-49, 50-99, 100-249, 250-499, 500-999, 1,000 and more employees) of enterprises and establishments.

Sample size and design

Statistical unit

Since 1997, the sampling and reporting unit is the establishment in industrial activities and the enterprise in non-industrial activities. Before 1997, it was the enterprise in all activities.

Survey universe / sample frame

The sample frame covers some 51,089 units with one and more employees, registered in the Register of Establishments and Enterprises kept by the Statistical Office. Establishments and enterprises are classified by legal status, size class and type of ownership. The Business Register is updated on an annual basis.

Sample design

The universe is stratified by sub-groups of economic activity, region and size class and within each stratum, simple random sampling is used. The sample is drawn by means of the Power Method, which takes into account the number of active and non-active reporting units. It consists of 1,972 units, which represents 3.9% of the sampling frame in terms of registered units, and some 22.1% of the total number of employees. The sample is updated on an annual basis.

Field work

Data collection

Data collection takes place during the first quarter following the reference year. The survey is conducted by means of diskettes, using a data collection software, and mailed questionnaires in the case of units which are unable to provide data by this method. Completed and returned questionnaires are put in electronic format using the recording software.

Survey questionnaire

Available in Slovak.

Substitution of sampling units

No substitution is applied. Units which have not replied because of a change of some kind (change of economic activity, gone into liquidation, etc.) are not taken into account in the sample.

Data processing and editing

Data are processed and edited by means of a specific software. Respondents receive assistance in case of difficulties in using the data collection software or completing the questionnaire. Incomplete questionnaires are complemented by telephone. Where missing data remain, the respective questionnaires are excluded from data processing.

Types of estimates

Average annual, monthly and hourly labour costs;

Structure of labour costs;

Average number of employees and hours actually worked.

Part-time workers are converted to full-time equivalents (two part-time employees are equivalent to one full-time employee).

Construction of indices

Not relevant.

Weighting of sample results

For each stratum (region, size class and legal status) the sample results are extrapolated using weights calculated as follows: W = N*m / n, where,

n is the number of units in the sample,

N is the number of units in the population,

m is the rate of active and non-active units.

Adjustments

Non-response

No adjustments are made for non-response.

Other bias

Standard errors are calculated and extreme values are imputed on the basis of the mean value in the given stratum: values which are out of the range mean ± 2 standard error are given the mean value x.

Use of benchmark data

Not relevant.

Indicators of reliability of the estimates

Coverage of the sampling frame

Not available.

Sampling error / sampling variance

Standard errors are calculated, but not published.

Non-response rate

About 19%.

Non-sampling errors

Not available.

Conformity with other sources

The wage data obtained from the Labour Cost data are compared with the wage data obtained the wages surveys and extreme values are excluded from the Labour Cost survey results.

Estimates for non-survey years

None.

Available series

Published tables include:

History of the survey

The Labour Cost survey is conducted on the basis of EUROSTAT's recommendations and follows the European Council Regulation (EC) No. 23/97 on statistics on the level and structure of labour costs. It was introduced in 1995, with reference to 1994. At that time, it excluded budgetary organizations, organizations based on contributions and non-profit organizations. It was repeated in 1997 and 1998, with reference to 1996 and 1997, covering all types of organizations, enterprises and establishments.

In 1998, the structure of labour costs was adjusted according to EUROSTAT's recommendations; however, some differences between the Slovak structure and the EU classification of labour costs still remain.

For the next survey, it is planned to reduce the sample size and to modify the weighting procedure.

Documentation

Statistical Office of the Slovak Republic: Total labour cost (annual) (Bratislava). The results are published within eleven months after the reference year. The survey results can also be made available on diskette, upon request.

Confidentiality / Reliability criteria

Data in respect of less than three establishments are not disseminated.

Other information

Data supplied to the ILO for publication

Statistics of average hourly labour cost in manufacturing are published in the ILO Yearbook of Labour Statistics.