• A. Quarterly full-scale survey on labour in organizations of financial intermediation and in all non-profit organizations irrespective of the number of employees as well as from a quarterly sample survey in profit organizations with 20 and more employees and in those with up to 20 employees which have a turnover of 5 million EUR and more.
• B. Specific quarterly sample survey in other small-size enterprises with up to 19 employees.

Administrative sources related to job vacancies of self-employed persons

• C. JV data from the administrative source administrated by the Central Office of Labour, Social Affairs and Family (after exclusion of the data related to legal persons).

- enterprises drawn from the Statistical Business Register administrated by the SO SR,

- self - employed persons with employees who are not incorporated in the Statistical Business Register.

Selection of statistical units into the sample was made randomly within particular strata derived by stratifying attributes (status of statistical unit, economic activity, size-classes of enterprises). Replacement within strata is not permitted.

In the group of large enterprises (100+ employees) all units were included to the sample. The full-size approach was applied when the total number of enterprises in the frame population within a particular stratum was less than 4, i.e. in that case all enterprises were included in the sample.

-  in sources A, B - economic activity (NACE Rev.2 at 4 digit level),

-  in source C - economic activity (NACE Rev.2 at 2 digit level), region and size classes of enterprises.

Weights were adjusted by reweighting or combination of imputation and reweighting due to non-respondent units.

- a detailed plan and timetable for completing implementation

- a summary of the remaining deviations from EU concepts

Table 2 in the file 'Tables_2022' in the Annex section shows the values of coefficients of variation for small-size units broken down by economic activities according to NACE Rev.2. Figures are relatively high almost in all sections of NACE Rev.2. The total CV values ranged between 10.94% - 29.40% over all quarters in 2022. The highest figures were calculated in some quarters for real estate activities; water supply; professional, scientific and technical activities. The reason is quite little occurrence of job vacancies in this group of employers.

 - Information control that should be verified

Average number of job vacancies is less (or equal) than average number of occupied posts.

Errors made by respondents have been identified and corrected through complex of software controls before data processing.

Table 4 in the file 'Tables_2022' in the Annex section shows the number of business units in the sample and the sample share - percentage of the business units in the sample from the reference population (REGISTER). It is broken down by size class. Sample fractions ranged between 10.67% - 10.88% for small-size units with less than 10 employees and 58.04% - 58.40% for other units over all quarters in 2022.

Over- and under- coverage errors referring to the sampled units wrongly classified in the frame are demonstrated in table 5 of the file 'Tables_2022' in the Annex section. The highest under-coverage relates to the small size units with 5-9 employees and 10-19 employees. Most of the small-size and middle-size firms are flexible and they often change their field of activity. Recording these dynamic turns by the statistical register is sometimes very difficult. On the other hand, bigger companies are over-covered.

 - economic activity at the same 2-digit code of NACE Rev.2,

 - the same code in “Categories of organizations by number of employees",

 - “Added Value” indicator with keeping the same volume of production and of intermediate goods.

Partial imputation does not make.

in the sources A and B:

- Responding units delivered the questionnaires to the respective regional administrations of the SO SR (Deadline: 20^th and 26^th calendar day after the end of the reference period).

- Regional administrations of the SO SR assembled the questionnaires (sending follow-ups 12^th, 8^th and 3^rd day before deadline).

- Projection and programming department saved the data file into the Original Database of the SO SR. (Deadline: 34^th day after the end of the reference period).

- Grossing – up procedures in the sample surveys. (Deadline: 40^th day after the end of the reference period). 

- Compilation of output tables and data files. (Deadline: 45^th day after the end of the reference period - it can be delayed if any errors occur). The same deadline is in the source C.

By the end of 2007, the reference date of the JVS data collection was the last day of the reference quarter. Starting from 2008Q1, the data is based on the average of the last days of each month in the reference quarter. Comparability of data before and after 2008 is very difficult. Therefore, the current time series has been kept since 2008.

The database of the Central Office of Labour, Social Affairs and Family (COLSAF) includes provisional monthly data on the number of job vacancies concerning all legal and physical persons. Figures on JV are more than four times in 2022 comparing to the JV data of the SO SR, what has been caused by the different survey methodology. Comparison between JV data of the SO SR and COLSAF provisional data on job vacancies show table 9 and graph 1 in the file 'Coherence_Tables_Graphs_2022' in the Annex section just below. Comparison between JVS data and the LFS data of the SO SR on occupied posts show table 10 and graph 2 in the file 'Coherence_Tables_Graphs_2022' in the Annex section just below. Annual average of the JVS occupied posts is lower than average number of employees from LFS (by 13.6%). After deduction of the number of persons who are not considered as employee in JVS it is lower by 118 828 (5.8%) comparing to annual average number of the LFS employees. The difference between the data is due to the different survey methodology. More detailed reasons are described in the sheet “Coherence with LFS data” of the file 'Coherence_Tables_Graphs_2022' in the Annex section just below. The Beveridge Curve for Slovak Republic (2010Q4-2022Q4) shows the Job Vacancy Rate and Unemployment Rate moving in the same directions. This is a consequence of national overall economy.

The difference between the numbers of employees from LFS and JVS occupied posts follows from differences in methodology, concept, definition and measurement. See the coherence analysis LFS versus JVS. The main reason of differences in number of employees by NACE Rev.2 is that in JVS the main activity of whole organization/enterprise is coded while in LFS it is main activity of the local unit. This methodological divergence is significant and it should be taken in account when comparison by NACE Rev.2 is made. The second significant reason of difference is that in JVS the economic activity of persons with a contract with a temporary employment agency are coded as the activity in the industry of the agency which employs them. While in LFS the economic activity of the local unit for persons with a contract with a temporary employment agency are coded as the activity of the local unit where they actually work and not in the industry of the agency which employs them. Besides reasons mentioned above, the section C (in LFS) covers quite numerous group of people working outside Slovakia. We suppose that higher number of employees in section C (in LFS) may be caused by group of employees with any legal contract (shadow economy). These persons are not covered in JVS. Besides reasons mentioned above section O (in LFS) includes numerous group of persons who are obliged to perform some work to keep receiving unemployment benefits. If they have performed some paid work during the reference week, they are coded as employed (employee). This group of persons is not considered as employee in JVS.

Quarterly brief information on JVS is released during the briefing and posted on the Internet website of the SO SR on average on 65^th day after the end of the reference quarter. By 65^th day, text and the table quarterly data on average number of job vacancies and job vacancy rate (distributed to NACE Rev.2 and region) are released on the Internet web site of the SO SR (see “Statistics, Demography and Social Statistics, Labour”). Within 10 days after the official release is updated, the table quarterly data on average number of vacancies and job vacancy rate (broken down by NACE Rev.2) is available to the public in the database (also in the regional database) of the SO SR. It is disseminated through the Statistical Office web site.

Annual average of quarterly JVS data (number of vacancies divided into economic activities) is available to the public in the database (also the regional database) of the SO SR.

Annual average of quarterly JVS data (number of vacancies divided into economic activities) is published in publications titled Statistical Yearbook of the SR 2023 in bilingual versions.

Metadata on JVS is also accessible in the on-line database DATAcube on the Office’s web site.

Annual publication titled „Employees and Average Monthly Wages in the SR” (only in the Slovak version) for enterprises with 20 and more employees for 2022 is displayed on the Internet web site of the SO SR. The publication includes besides tables and charts also methodological explanations containing basic characteristics of published data and definitions of basic indicators. The same description of metadata is included in the quarterly Statistical report on fundamental tendencies in the economy of the SR (only in Slovak language).