Slovenia

Title of the survey

Mesecno porocilo o placah in zaposlenih osebah v podjetjih, druzbah in organizacijah (ZAP-M) (Monthly reporting on earnings and persons in paid employment in enterprises, companies and organisations).

Organization responsible

Statisticni Urad Republike Slovenije (Statistical Office of the Republic of Slovenia).

Periodicity of the survey

Monthly.

Objectives of the survey

To collect information on gross and net earnings, on levels of paid employment, hours paid for, labour turnover and other important issues concerning employment, which are used by government agencies and employers' and workers' organisations to study changes in the national economy, for policy making, for fixing minimum wage rates, for wage fixing and collective bargaining, for fixing pensions, for national accounts and for assessing levels of living.

Main labour topics covered by the survey

Employment, earnings and hours of work.

Reference period

Employment: the last day of the month.

Earnings and hours of work: the whole month.

Coverage of the survey

Geographical

Whole country.

Industrial

All branches of economic activity.

Establishments

All types and sizes of companies, enterprises and organisations in the public sector, and enterprises with at least three paid employees in the private sector.

Excluded are private enterprises with one or two employees, individual employers, own-account workers and private farmers.

Persons

Persons in paid employment on the territory of Slovenia, including those with a work permit and workers under employment promotion schemes.

Excluded are expatriate workers (e.g. citizens of the Republic of Slovenia employed permanently in Slovenian missions or on business sites abroad), unpaid contributing family workers and persons performing contract work.

Occupations

Data are not collected by individual occupation.

Concepts and definitions

Employment

Persons in paid employment (i.e. employees) are those with an employment contract, whether full-or part-time, and irrespective of the duration of employment (temporary or permanent).

They include working proprietors and directors who receive a salary, wage earners and salaried employees, trainees and workers on probation, home workers, casual, temporary and seasonal workers, workers under employment promotion schemes, as well as persons temporarily absent from work because of vacation, holiday, temporary lay off, sickness or accident, etc.

Excluded are workers sub-contracted from other companies or firms, apprentices, commission agents and workers from temporary work agencies.

Information is collected on the number of employees receiving earnings for the reference month and, separately, those receiving payment for overtime work. The total number of all employees on the enterprise records at the end of the month is also recorded, including those absent on sick leave, maternity leave, etc. who are covered by government payments, and separately the number of women employees.

Additional information is collected on labour turnover.

Earnings

For each enterprise, data are collected on the total gross and net monthly earnings (in cash).

Gross monthly earnings comprise all cash payments made to employees during the reference month, including direct wages (pay for normal time work, premium pay for overtime, holiday work, shift work, night work, etc., incentive pay (production bonuses, etc.) and other regularly paid bonuses, remuneration for time not worked (annual vacation and other paid leave up to 7 days, maternity leave and sick leave up to 30 days, public holidays and other recognised holidays, and other time off with pay) and profit-sharing bonuses.

The following items are not covered:

Data are collected separately on gross earnings relating to the reference month and gross earnings relating to other periods, such as the payment of retroactive wage rate increases, profit-sharing bonuses, 13th month salary, etc.

Net earnings are gross monthly earnings after deduction of employees' income tax and contributions to health, pension, accident or unemployment insurance funds.

Wage / salary rates

Not relevant.

Hours of work

Data are collected on hours paid for and include: Paid normal hours of work and overtime hours, inactive hours spent at the workplace, and hours paid for but not worked, for reasons such as vacation or holidays, sickness (less than 30 days) or accident, occupational injury or illness, study leave, military service, professional training, etc.

Hours not worked for maternity, parental or personal leave and hours spent on travel from home to work and vice versa are excluded.

International recommendations

The definition of earnings conforms to the international guidelines on total regular earnings. However, they are limited to cash payments.

Classifications

Industrial

The data are classified according to the Slovenian Standard Classification of Activities. This classification is an adaptation of the Standard Classification of Economic Activities of the European Communities (NACE, Rev.1) which itself is based on the International Standard Industrial Classifications of all economic activities (ISIC), Rev.3.

Occupational

Not relevant.

Others

By region, local government unit and municipality. Employment data are also classified by sex.

Sample size and design

Statistical unit

In most cases, the reporting unit is the enterprise, which may consist of one or more establishments.

Enterprises are classified by main activity, which is their registered activity or activity defined by law or legal document on the creation of the business entity, irrespective of its organisational form, status, ownership of method of production or service.

Separate information is collected with respect to each establishment. About 10% of the reporting units are establishments.

Survey universe / sample frame

The enterprises are drawn from the Business Register of Slovenia (BRS), set up in application of the Law on Business Register of Slovenia (OJ RS, No.13/95), which was supplemented by the Decree on keeping and maintaining the Register (OJ RS, No. 70/95).

An identification number and an activity code are required in order to start a business, and the Statistical Office allocates these on the basis of the registration forms and statistical declaration. For some institutional units, the Statistical Office uses other sources of information, such as official journals; administrative sources are also used for updating the register. The Register covers all economic activities except private farms.

At the end of 1998, there were some 140,000 registered enterprises. Of these, only about 61,300 enterprises were operating. About 50,000 of them are individual private entrepreneurs who are not included in the survey. The data are collected from about 9,000 enterprises with about 20,000 establishments.

Sample design

The survey is based on a complete enumeration of all enterprises on the Business Register, except for private enterprises with less than three employees, individual private entrepreneurs and own account workers.

Field work

Data collection

Questionnaires are sent by mail each month to all the enterprises, with a separate form used for each establishment. The completed forms should be returned to the Statistical Office by the 20th of the month following the reference month.

Survey questionnaire

This is divided into three parts: Instructions are provided along with the questionnaire for each type of data to be reported.

Substitution of sampling units

Not relevant.

Data processing and editing

Respondents are requested to complete the questionnaires using standard figures, so that the information can be read directly onto the computer database. Only about 25% of all questionnaires need manual data entry. The data are edited through computer programmes comprising extensive logical controls, pre-set ranges and consistency tolerances that are expected for data items, on the basis of information available from the previous month or from other sources. If data are inconsistent or missing, respondents are contacted by telephone.

Types of estimates

Number of employees; average gross and net monthly and hourly earnings per employee; composition of average gross monthly earnings per employee (total, total excluding irregular bonuses, overtime); average hours paid for per month.

Average hourly gross and net earnings are derived by dividing the total amount of gross and net monthly earnings by the total number of hours paid for.

Construction of indices

Indices of average gross and net monthly and hourly earnings and hours paid for are calculated each month, taking respectively as base the corresponding figures for the previous month, and the same month of the previous year.

Indices of gross and net monthly earnings and hours paid for are also calculated for the average from January to the current month of the current year using as base the average for the same period of the previous year.

Indices of real average gross monthly earnings are calculated for similar periods, using the consumer price index as the deflator.

Weighting of sample results

Not relevant.

Adjustments

Non-response

By imputation of the data from the last three months.

Other bias

None.

Use of benchmark data

Not relevant.

Seasonal variations

The TRAMO-SEATS method is used; it is based on the ARIMA models to decompose time series into individual components.

Indicators of reliability of the estimates

Coverage of the sampling frame

The BRS contains records of all business entities registered, recorded or created by law, whatever their business activity.

Sampling error / sampling variance

Not relevant.

Non-response rate

Approximately 8% in terms of units.

Non-sampling errors

Inaccuracies may occur because of misinterpretation of questions by respondents, errors in data processing, etc. Every effort is made to reduce non-sampling errors to a minimum by using clear instructions, efficient operating procedures and editing checks.

Conformity with other sources

Not relevant.

Available series

The published tables cover the number of persons in paid employment; average net and gross earnings (both monthly and hourly), classified by municipality, local government unit and economic activity; the structure of average gross monthly earnings classified by major industry group; average number of hours paid for and indices of net and gross monthly earnings (both nominal and real).

History of the survey

The survey began in 1962. Up to 1992, it covered enterprises in the socialised sector only.

In 1992, private enterprises with at least three persons in paid employment and members of the armed forces were included, and the police was included in 1993.

Documentation

Statisticni Urad Republike Slovenije (Statistical Office of the Republic of Slovenia): Statisticne informacije (Statistical information - Rapid Reports) (monthly, Ljubljana).

In addition to the survey results, the publication contains data about average levels of pensions and other social security benefits and the legal minimum wage rate.

idem: Mesecni Statisticni Pregled (Monthly Statistical Review) (monthly, ibid.);

idem: Statisticni Letopis (Statistical Yearbook) (annual, ibid.);

idem: Rezultati raziskovanj (Results of Surveys) (annual, ibid.).

Brief methodological information is also included, as well as an analysis and charts of the survey results.

Web-site address: http://www.sigov.si/zrs

See also:

CESTAT Statistical Bulletin, publication prepared jointly by the Czech Statistical Office, the Hungarian Central Statistical Office, the Central Statistical Office of Poland, the National Commission for Statistics of Romania, the Statistical Office of the Republic of Slovenia and the Statistical Office of the Slovak Republic (quarterly).

Confidentiality / Reliability criteria

The data collected are covered by confidentiality laws.

Other information

Data supplied to the ILO for publication

The following data are published in the Yearbook of Labour Statistics:

Paid employment by sex,

Average monthly earnings of employees, by economic activity and in manufacturing, by industry group.

The corresponding monthly series are published in the relevant tables of the Bulletin of Labour Statistics.

Other sources of data

The Biannual reporting on employment and earnings (ZAP-PL), conducted in March and September of each year, provides detailed statistics on the distribution of employees according to 20 classes of gross monthly earnings, classified by industry, local government units and branch offices. It also provides data on the number of establishments covered, the number of establishments providing information on the lowest wage rates paid, the lowest level of the scale for the lowest level of qualifications actually paid in enterprises, the lowest and highest gross monthly earnings reported, the total number of employees, the number of employees paid at the lowest level, the amount of the lowest level as a percentage of the lowest level fixed in the collective agreement, the number of workers paid at less than the minimum wage rate, and the number of workers not covered by collective agreements, classified by industry and by code of collective agreements.

The Statistical Office of the Republic of Slovenia also conducts: