Registered employment

Quality report
Period: Annual
Year: 2018

01. Contact
02. Statistical presentation
03. Statistical processing
04. Quality management
05. Relevance
06. Accuracy and reliability
07. Timeliness and punctuality
08. Coherence and comparability
09. Accessibility and clarity
10. Cost and Burden
11. Confidentiality
12. Comment

01. ContactTop
01.1. Contact organisation

Statistical Office of the Republic of Serbia

01.2. Contact organisation unit

Labour Market Statistics Department, Registered Employment and Labour Costs Unit

01.3. Contact name

Milijana Smiljkovic

01.4. Contact person function

Head of the Registered Employment and Labour Costs Unit

01.5. Contact mail address

5 Milana Rakića, Belgrade

01.6. Contact email address

01.7. Contact phone number

+381 11 2412-922 ext. 344

01.8. Contact fax number

+381 11 2412350

02. Statistical presentationTop
02.1. Data description

The objective of the survey on registered employment is to obtain data on the number of employed persons in legal entities and entrepreneurs, number of self-employed persons as well as the number of individual agricultural producers (farmers) included in the system of social insurance.

The data of this survey are used for:

  • precise measurement of the employment growth in the specific period of time;
  • monitoring the employment trend according to the employment modalities: "long-term employment" - "temporary and occasional employment";
  • obtaining information on the number of employed persons at lower territorial levels (down to the level of municipalities);
  • obtaining information on the number of employed persons at the level of the section/division of activity;
  • monitoring employment trend in the public sector.
The survey on registered employment is based on the combination of data from the Central Registry of Compulsory Social Insurance (CRCSI) and the Statistical Business Register (SBR).
02.2. Classification system

- Classification of Activities (2010) - CA 2010, which was adopted by the Government, based on the Law on Classification of Activities („Official Journal of the RS“, number 104/09), by the regulation of 29 July 2009 („Official Journal of the RS“, number 54/10). This classification is comparable with the classification of activities of the European Union (NACE, rev. 2);

 - List of municipalities drawn in line with the Regulation on the Nomenclature of Statistical Territorial Units („Official Journal of the RS“, numbers 109/09 and 46/10);

 - Code list of the insurance grounds according to the Regulation on the content, form and method of submitting the unique application for compulsory social insurance, unique methodological principles and unique procedure of codes for data entry into the database CRCSI („Official Journal of the RS, numbers 54/10,124/12 and 119/13).


02.3. Coverage - sector

All sections of activity (CA 2010), from the section A - Agriculture, forestry and fishing to the sector S - Other service activities, are included.

02.4. Statistical concepts and definitions

Definitions of the main concepts

- The concept social insurance contribution payer includes the insured person and employer or income payer who pays the social insurance contribution.

- Insurer is a physical person insured according to the laws regulating the system of compulsory social insurance.


-   The concept employed in "long-term employment" includes persons who have a formal contract of employment with an employer for a fixed or indefinite time, whether working full-time or part-time, professional servicemen, persons performing manager's work under contract of management rights and responsibilities as well as persons performing solely an activity or being founders of enterprises or entrepreneurial shops and being registered in the CRCSI.

-     The concept employed in "temporary and occasional employment" includes persons having a formal contract of performing temporary and occasional work, service contract, author contract or any other, whatever the duration, as well as persons being founders of enterprises or entrepreneurial shops and not having an employment relationship and being registered in the CRCSI.

-      The concept registered individual agricultural producers (farmers) includes persons up to 65 years of age registered in the CRCSI as persons who are insured on the ground of performing agricultural activities, i.e. persons who are considered to be engaged in agricultural activities according to the law (farmers, farmer's household members, mixed household members, agricultural holders and agricultural holding members) if they are not insured on the ground of employment, performing independent activities, pension beneficiaries and at schooling.


 Public sector is the part of national economy covering general government, as well as non-financial enterprises under government supervision (public enterprises) who are primarily engaged in commercial activities (Law on Budgetary System, „Official Journal of the RS“, No. 54/2009, 73/2010, 101/2010, 101/2011, 93/2012, 62/2013, 63/2013, 108/2013, 142/2014, 68/2015 and 103/2015). Therefore, the public sector covers the beneficiaries of budgetary funds in education, culture, health, social work activities, government administration as well as public enterprises which are founded by the State or local self-government  units which perform an activity of general interest (Law on public enterprises and performing activities of general interest, „Official Journal of the RS“, No. 119/2012, 116/2013 and 44/2014).


The public sector is broken down into the following subsets:

Public state enterprises are enterprises which are founded by the Republic of Serbia or autonomous province and which perform activities of general interest, such as production, transmission and supply of electricity; coal production and processing; researches, production, processing, transport and supply of oil and natural and liquefied gas; sale of oil and oil derivates; railway, postal and air transport; telecommunications; publishing of the official journal of the Republic of Serbia; publishing of schoolbooks; management of nuclear facilities, use, management, protection and improvement of assets of general interest (water, roads, mineral raw materials, forests, navigable rivers, lakes, banks,spas, wildlife, protected areas); production, sale and transport of arms and military equipment, waste management.

Public local enterprises are enterprises which are founded by the local self-government units and which perform public utilities' activities or activities of interest for functioning of local authorities’ bodies.

Administration ‒ government and autonomous province level implies government bodies, bodies of the autonomous province, judicial bodies and institutions engaged in government-related activities.

Administration ‒ local authorities’ level implies local authorities’ level, local communities and institutions performing activities of general interest for local authorities.

Health and social work implies beneficiaries of budgetary funds, i.e. government institutions engaged in health and social security activities, sale of pharmaceutical products in pharmacies, sale of medical and orthopedic aids in specialised stores as well as students' and pupils' dormitories.

Education and culture implies beneficiaries of budgetary funds, i.e. government institutions engaged in education; scientific research & development; publishing activity; broadcasting activities; creative, art and entertainment activities; sports facilities activities as well as activities related to libraries, archives, museums and other cultural activities.

02.5. Statistical unit

The source of data is the CRCSI. The units of observation are insured persons of compulsory social security.

02.6. Statistical population

The survey covers all the social insurance contribution payers and the insured persons who are insured on the ground of employment according to the CRCSI: employees, i.e. persons employed in an enterprise, other legal entity, government body, local authorities' body; civilians serving military service in the army and military units and institutions; professional servicemen according to regulations on the Army of Serbia; domestic and foreign citizens employed in the territory of the Republic of Serbia in foreign or international organisations and institutions, foreign diplomatic representations and consular representations or in foreign legal or physical persons unless otherwise defined in international contract, i.e. if such insurance is provided for international contract; persons performing work outside employer's premises; employees sent to work abroad if they are not insured under the regulations of the given country or if otherwise laid down in international contract; persons who work or whose status is equivalent to employment: elected, appointed or delegated persons if they receive salaries; persons insured working on temporary or occasional basis: persons working on temporarily or occasionally basis if they are not insured on other grounds; persons who perform temporary or occasional work through youth or students' employment agencies according to the law, and are 26 years old, i.e. whatever the age if not at schooling; persons performing work under contract: work under service contract, author contract and under other contracts, but are not insured on other grounds; persons insured on the ground of performing self-employment activities: persons who are self-employed, founders, i.e. member of enterprises and who work within whether employed by the enterprise which they are founders or members, according to the law; priests, church officials, if they are not compulsory insured on the ground of employment; sportsmen who, according to the law, carry out sports self-employment activities; persons up to 65 years of age insured on the ground of performing agricultural activities : persons who, according to the law, are deemed being engaged in agriculture (farmers, farmer's household members, mixed household members, agricultural holder and agricultural holding members) if they are not insured as employees, self-employed, pension beneficiaries or at schooling.

02.7. Reference area

Republic of Serbia.

Since 1999, the Statistical Office of the Republic of Serbia has no available data for AP Kosovo and Metohia, therefore they are not included in the data for the Republic of Serbia (total).

02.8. Coverage - Time

Data are available from 2015.

Comparable data series from 2000-2014 were obtained by revision of the data. 

  (For more details, see sections: Comparability over time and Data revision).

02.9. Base period

Not applicable.

03. Statistical processingTop
03.1. Source data

Administrative sources: CRCSI and SBR.

Data from the Survey on Local Units conducted by the SBR.


03.2. Frequency of data collection


03.3. Data collection

Data from CRCSI. In September 2014, SORS took over the initial database of the insured and insured persons from CRCSI, and ever since retrieves every first Monday data on changes occurred in the previous month. This is done electronically, through web service, i.e. FTP service (File Transfer Protocol), via a secured network of the Administration of General Affairs of government bodies of the Republic of Serbia.

Data from SBR. SBR creates every month two consultation databases. The first is a set of all active enterprises, as of the last day in the month, according to the Register of Units of Classification kept by the SORS, and according to the data of the Business Register Agency. This consultation database is matched with the CRCSI database, and matched i.e. active enterprises are matched with data on the insured employees from CRCSI database represent the population for the calculation, i.e. classification of employees in legal entities and entrepreneurs.

The second consultation database is a set of all local units where there are a number of employees broken down by activities. Based on this file, created are the structures of the number of employees in enterprises, by local units and by activities of local units. Then, based on these structures the employees from CRCSI database are broken down by municipalities and activities.

03.4. Data validation

In order to ensure the quality of statistical data, the primary database is checked. Contingent control is conducted, data are analyzed to identify potential errors and check the logic and validity of data as well as to detect extreme values. The checks are performed by automated procedures and expert data analysis. Data are compared with data from the previous period and the same period of the previous year. Also, the data is compared with other relevant data, for example, from the Labor Force Survey and the National Employment Service.

03.5. Data compilation

Not applicable.

03.6. Adjustment

Not relevant.

04. Quality managementTop
04.1. Quality assurance

04.2. Quality management - assessment

Data on registered employment are based on reliable data from appropriate administrative sources and surveys. The degree of accuracy is high. Before publishing the results, extensive data quality control is carried out. Compliance with other statistical domains is satisfactory. Comparability over time is good. The release of the results is in accordance with the publication calendar and the data is readily available to all users.

Combining several sources and methods of data collections on employees (for registered employment) is in line with international recommendations, standards and practice. The data are internationally comparable, as the EU and relevant international concepts, definitions and classifications are respected.

05. Relevance Top
05.1. User needs

The need for up-to-date information on the number of employed, their movement and structure is expressed by a wide range of users, ranging from the state administration, through domestic, international, scientific and other institutions, business subjects, to interested citizens. Some of the most important users of data on employment are the Government of the RS, Ministry of Labour, Employment, Veterans and Social Affairs, Ministry of Finance, Ministry of Economy, Ministry of Public Administration and Local Self-Government and other ministries, National Bank, Chambers of Commerce, Trade Unions and Employers' Union, foreign employers (investors), then  Eurostat, the European Central Bank, the International Monetary Fund and the International Labour Organization.


05.2. User satisfaction

User satisfaction is measured on the basis of the amount of downloaded data and by Users Satisfaction Survey. The results of the last survey are available on the following link

05.3. Completeness

Not relevant.

05.3.1. R1. Data completeness - rate

Not applicable.

06. Accuracy and reliabilityTop
06.1. Overall accuracy

The Survey is based on data from administrative sources. Accuracy and reliability are at a very high level.

06.2. Sampling error

Not applicable.

06.2.1. A1. Sampling error - indicators for P (producers)

Not applicable.

06.3. Non-sampling error

The results obtained from administrative sources are subject to the usual types of non-sampling errors, such as input errors, encryption, etc. The number of employees is a cross-section on the next to last working day in the month, which can be the cause of both under-coverage and over-coverage errors.

Possible insufficient precision at lower levels, such as the number of employed at the lower levels of NSTJ - municipalities and CA 2010 (due to the application of the methods of distribution of employed according to the municipality and the activities of local units according to data from the survey on local units).

06.3.1. Coverage error

- A 2. Over-coverage - rate

Not applicable. A 3. Common units - proportion

Not applicable.

06.3.2. Measurement error


06.3.3. Non response error

- Unit non-response - rate

Not applicable. A5. Item non-response - rate

Not applicable.

06.3.4. Processing error

Not available. A 7. Imputation - rate

Not available.

06.3.5. Model assumption error

Not applicable.

06.4. Seasonal adjustment


06.5. Data revision - policy

The main principles and standards of the revisions of released statistical data are defined by the General Revision Policy of the Statistical Office of the Republic of Serbia.

 Annexes :
 General Revision Policy
06.6. Data revision - practice
Routine revisions:
A possible revision is carried out not later than 120 days after the reference period. Upon expiry of that period, preliminary results for which no revision has been carried out, as well as data revised in the meantime are considered as a final data.
Routine (current) data revisions are made due to the availability of new, more complete or revised data from CRCSI and SBR, and from the Local Unit Survey.
Major revision:
Starting from 2015, the SORS uses new data sources for monitoring registered employment - the CRCSI and the SBR. To allow comparison of data for the 2000-2014 series with data starting from 2015, a revision of already published data on registered / formal employment for the period 2000-2014 was carried out.

 Annexes :
 Revision of data on registered employment,2000-2014
06.6.1. A6. Data revision - average

Not applicable.

07. Timeliness and punctualityTop
07.1. Timeliness

The data are published 30 days after the reference period.

07.1.1. TP1. Time lag - first result

First results - 30 days after the reference period.


07.1.2. TP2. Time lag - final results

Final results- 120 days after the reference period.

07.2. Punctuality

All data are published according to the announced Publications Calendar:

07.2.1. TP3. Punctuality - delivery and publication
Punctuality of data delivery, P3 = 0
Rate of punctuality of data publication,  P3R = 1

08. Coherence and comparabilityTop
08.1. Comparability - geographical

The same statistical concepts are applied in the entire national territory. 

The Survey on Registered employment  is, among others, in line with the definitions in Council Regulation (EC) No. 1165/98 concerning short-term statistics and amendments to this Regulation (No. 1158/2005 ), as well as with  Commission  Regulation (EC) No. 1503/2006 on implementing and amending Council Regulation (EC) No. 1165/98 concerning short-term statistics as regards the definitions of variables, list of variables and frequency of data compilation.

08.1.1. CC1. Asymmetry for mirror

Not applicable.

08.2. Comparability - over time

Data for 2015 are obtained according to a new methodology, i.e. new source and new definition of registered employment. In order to provide comparison of the data for series 2000-2014 with data from 2015, the revision of the already published data on registered / formal employment have been done.

The revision has been done up to the level of municipalities (NSTJ 4) for the total number of employed in a municipality and up to the division level of classification of activities (two-digit level of CA 2010) for the Republic of Serbia for the total number of employed, whereof the total number of employed refers to the employed in legal entities and in unincorporated enterprises (entrepreneurs), in "long-term" employment and "temporary and occasional" employment, as well as persons performing independent activities or are founders of enterprises or entrepreneurs.

Estimation of the number of registered individual agricultural workers for the period 2000-2014 was not performed because there are no adequate elements for carrying out such estimates.

08.2.1. CC2. Length of comparable time series for P (producers)

Not applicable.

08.3. Coherence - cross domain

The degree of coherence is satisfactory. The data are compared with the employment data from the LFS, the Semi-annual  Survey on employees and their salaries and wages and Survey on earnings. Differences in the data that occur between these surveys are expected and are the result of different methodologies, coverage and definitions.

 Annexes :
 Correlation with other surveys
08.4. Coherence - sub annual and annual statistics

See 8,3.

08.5. Coherence - National Accounts

Not available.

08.6. Coherence - internal

Until  2015, the annual average is calculated as the arithmetic mean of two states - March 31 and September 30

From 2016, the annual average represents the average of all 12 months. Since 2016, data are available as monthly and quarterly. 

As a consequence of rounding, slight discrepancies in sums at different levels of aggregation can occur.

09. Accessibility and clarityTop
09.1. Dissemination format - News release

Not applicable.

09.2. Dissemination format - Publications

-   Statistical release ZP22 – Registered employment in the Republic of Serbia, quarterly

-   Statistical release ZP22-G – Registered employment in the Republic of Serbia, annual

-   Statistical release ZP20 – Registered employment in the Republic of Serbia, annual


09.3. Dissemination format - online database

09.3.1. AC1. Data tables - consultations

Not applicable.

09.4. Dissemination format - microdata access

Microdata are accessible at user’s demand in accordance with principles defined in Official Statistics Law   and rules defined by “Rulebook on the method of using and providing the data produced by the Statistical Office of the Republic of Serbia”

09.5. Dissemination format - other

-    Monthly Statistical Bulletin

-    Statistical Yearbook of the Republic of Serbia

-    Statistical Pocket-book

-    Municipalities and Regions in the Republic of Serbia

09.6. Documentation on methodology


09.7. Quality management - documentation


09.7.1. AC 3. Metadata completeness - rate

Not applicable.

09.7.2. AC 2. Metadata - consultations

Not applicable.

10. Cost and BurdenTop
10. Cost and Burden

Not available.

11. Confidentiality Top
11.1. Confidentiality - policy

National legislation:

National confidentiality policy is defined in Official Statistics Law

European legislation:

Regulation (EC) No 223/2009 of the European Parliament and of the Council, of 11 March 2009, on the transmission of data subject to statistical confidentiality to the Statistical Office of the European Communities (

11.2. Confidentiality - data treatment

Confidential data are treated in line with prescribed confidentiality principles.


12. CommentTop
12. Comment