Turnover in services (sts_os_t)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: Statistical Office of the Slovak Republic.

Time Dimension: 2018-A0

Data Provider: SK1

Data Flow: STSSERV_ESMS12_A


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)
 



For any question on data and metadata, please contact: EUROPEAN STATISTICAL DATA SUPPORT

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1. Contact Top
1.1. Contact organisation

Statistical Office of the Slovak Republic.

1.2. Contact organisation unit

800-Business statistics section

1.5. Contact mail address

Statistical Office of the Slovak Republic, Miletičova 3, 824 67 Bratislava


2. Metadata update Top
2.1. Metadata last certified 23/04/2019
2.2. Metadata last posted 23/04/2019
2.3. Metadata last update 23/04/2019


3. Statistical presentation Top
3.1. Data description

The following variables are collected:

In Trade and Selected market services surveys:

— Turnover;

—   VAT.

In Transportation and storage, Information and communication surveys:

— Turnover.

Variables are reported in EUR.

3.2. Classification system

Odvetvová klasifikácia ekonomických cinností (SK NACE Rev. 2) - Branch classification of economic activities – NACE rev.2.

Klasifikácia štatistických územných jednotiek- Nomenclature of Territorial Units for Statistics– NUTS 2010.

Štatistická klasifikácia produktov podľa činností - Classification of products by activity -  CPA 2015.

3.3. Coverage - sector

Trade

Activities covered

Enterprises with principal activity in Divisions 45, 46, 55, 56 of NACE Rev. 2.

Selected market services

Enterprises with principal activity in Divisions 68-71,73,74,77-82,85.5-6,90-93,95,96 of NACE Rev. 2.

Transportation and storage; Information and communication

Enterprises with principal activity in Divisions 49-53; 58-63 of NACE Rev. 2.

Size classes covered

All enterprises with 20 and more employees registered in the business register, small enterprises in the business register with less than 20 employees having an annual turnover in excess of 5 Mill. EUR (as well as sole proprietors having an annual turnover in excess of 5 Mill. EUR).

Sample of small enterprises and sole proprietors performing their business activity on the base of issued trade licences according to Act no. 455/1991 [Digest] (the data source is the number of issued trade licences).

3.4. Statistical concepts and definitions

The turnover indicator covers the sale of finished products, intermediary products and services, as well as the income from the resale of goods in the same condition as received. It excludes reductions and rebates. VAT and excise duty is not included. The particular items are based on the company accounting headings.

Services turnover as defined in CR 1503/2006.

3.5. Statistical unit

Enterprise is the reporting as well as observation unit.

3.6. Statistical population

Sample of small enterprises with less than 20 employees and an annual turnover less than 5 Mill. EUR with principal activity in Divisions 47 of NACE Rev. 2.

 

3.7. Reference area

All regions of the Slovak Republic are covered by the survey. The reporting units are residents at the territory of the Slovak Republic and provide data on their domestic activities and activities outside, if the activities carried out are of a subject of the tax and other duties in relation to Slovak legislation.  

3.8. Coverage - Time

All relevant Divisions 2000 on.   

3.9. Base period

Base period is not relevant for sending the absolute values.


4. Unit of measure Top

Absolute values are transmitted to Eurostat. Data in absolute figures are published nationally as well.


5. Reference Period Top

Refrence period is month.


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Right to collect data in general is governed by the Slovak National Council law No 540/2001(Digest) on the state statistics as amended and supplemented by further regulations.

The obligation to provide data is stated in the Statistical Law and its provisions (Programme of State Statistical Surveys), which is fixed for a 3-year period.

6.2. Institutional Mandate - data sharing

The required variables are transmitted in SDMX format to Eurostat since 2017.

Data are sent National Bank of Slovakia, national institutions.


7. Confidentiality Top
7.1. Confidentiality - policy

Confidentiality of statistical data is laid down in act No. 540/2001 Coll. On state Statistics, as amended, § 30.

Instructions and guidelines are provided in internal directive SME – 1/2015 - Directive on confidentiality data protection complemented by Methodological guideline MET-1/2013. Directive contains general issues related to the confidentiality, while the methodological guideline is focused on concrete methods and parameter values used in the phase of confidentiality treatment of particular statistical surveys results and data files.

7.2. Confidentiality - data treatment

In case of turnover in services we apply consistently the rule of primary confidentiality: data cell for less than 3 enterprises is protected. Secondary confidentiality is applied as well.


8. Release policy Top
8.1. Release calendar

The schedule of statistical release dates.

First Release Calendar provides the precise release dates for the coming four months in advance. The calendar is updated monthly. It covers main economic and social indicators established currently within the EU regulations and IMF special standard, which define timeliness standards as well.

In the First Release Calendar compilation release dates defined by Eurostat are taken into consideration.

First Release Calendar

The “Catalogue of publications” is released every year. It contains information on particular publications, periodicity and dates of release.

Catalogue of publications

Statistical Yearbook of the Slovak Republic

DATACUBE

8.2. Release calendar access

First Release Calendar is publicly accessible. It is disseminated on the office's website, and in the monthly publication "Monitor of the Economy of the Slovak Republic". Users are also informed about the availability of the release calendar in a notice published in the relevant activity's publication.

First Release Calendar

The data are released simultaneously to all interested parties by issuing "Information reports" which are posted on the website of the Statistical Office of the SR:

Information Reports 

8.3. Release policy - user access

Each questionnaire contains an introduction concerning the reference to the statistical law and confidentiality issues. The Act 540 of November 29, 2001 on state statistics, Part 5 Dissemination of statistical information in Articles 29 and 30, institutes obligation to maintain confidentiality and confidentiality data protection. It is available also on the website in Slovak and in English, free of charge. The information service of the SOSR also provides users with this information on request, free of charge.

Users are consulted:

- in accordance with internal directives on Value adding processes, part Communication with users;

- via Survey on satisfaction of users with products and services of the SO SR, in two-year periodicity;

- via conduct of activities focussing on learning about expectations of key users and on supporting better interpretation and better use of statistical products (action programe defined by the development strategy of the SOSR and reflected in Marketing plan for respective year)); the activities are evaluated in annual Evaluation of Marketing plan; document Overview of activities focussing on learning about expectation of key users and on supporting better interpretation and better use of statistical products

-  via  meetings with users conducted in accordance with the action programme defined by the development strategy of the SOSR and reflected in the Marketing plan for the respective year: to carry out activities focussing on learning about expectations of key users and on supporting better interpretation and better use of statistical data.

The first release is performed in the form of an information report or a press conference. There is a standing rule, that all users have the right to be provided with information at the same time. Outputs (information reports) are released at the standard daily time (at 9.00 o’clock) at the Internet portal of the SOSR in accordance with Principles of Release and Provision of Statistical Information.


9. Frequency of dissemination Top

(1)  Data on turnover are transmitted to Eurostat montly.

(2)  Data on turnover are disseminated monthly to national users.


10. Accessibility and clarity Top
10.1. Dissemination format - News release

Trade

Released monthly in electronic publications:

— "Information reports" according to the release calendar;

— "Monitor of the Economy of the Slovak Republic".

Released quarterly in electronic publications:

— "Domestic trade, Accommodation and Food Service Activities in the Slovak Republic"

— "Statistical Report on Basic Development Tendencies in the Economy of the Slovak Republic".

Website: http://www.statistics.sk

Selected market services

Released monthly in electronic publications:

— "Information reports" according to the release calendar;

— "Monitor of the Economy of the Slovak Republic".

— "Basic Indicators of Selected Market Services".

Released quarterly in electronic publications:

— "Statistical Report on Basic Development Tendencies in the Economy of the Slovak Republic".

Website: http://www.statistics.sk 

Transportation and storage; Information and communication

Released monthly in electronic publications:

— "Information reports" according to the release calendar;

— "Monitor of the Economy of the Slovak Republic".

— "Current data on Transport”

  Website: http://www.statistics.sk 

Released quarterly in electronic publications:

— "Statistical Report on Basic Development Tendencies in the Economy of the Slovak Republic".

Website: http://www.statistics.sk

10.2. Dissemination format - Publications

Released quarterly in paper publication:

— "Statistical Report on Basic Development Tendencies in the Economy of the Slovak Republic".

Released annualy in paper publications:

— "Statistical Yearbook of the Slovak Republic".

Statistical Yearbook

Regional Statistical Yearbook of Slovakia

10.3. Dissemination format - online database

DATACUBE

10.4. Dissemination format - microdata access

Micro-data are not disseminated.

10.5. Dissemination format - other

Eurostat, national administration, National Bank of Slovakia.

10.6. Documentation on methodology

Metadata for selected indicators are disseminated in SDDS structure. Dissemination of metadata for other indicators will be solved by implementation of Methodical directive for production of harmonised metadata being in preparation.

Metadata of statistical outputs are available independent from publication form (electronic and hardcopy). Metadata update is performed by persons responsible for the relevant topic following the methodology change.

Metadata are updated in public databases according to methodical directives for database Slovstat and database RegDat. The update of metadata disseminated in databases as well as of metadata on portal is conducted according to the annual time tables of updating; they are submitted to top management meeting for approval.

Relevant documents are Rules and principles of development and update of SLOVSTAT database and Methodological directive on using the regional statistics warehouse.

Trade and  Selected market services

Each publication contains an introduction concerning methodological notes and contact for the information service. On the website of the SOSR there is available:

— information on turnover in services in “Indicators on economic development” including basic methodological notes;

— statistical questionnaires forms in national version including methodological notes;

— methodological sheets (descriptions of statistical indicators in detail) in national version.

Statistical Questionnaires

Metadata of the variables

Transportation and storage; Information and communication

Each publication contains an introduction concerning methodological notes and contact for the Information service. On the website of the SOSR there is available:

— information on Services turnovers "Current data on Transport” including basic methodological notes;

Statistical Questionnaires

Metadata of the variables

— information on Services turnovers "Statistical Yearbook of the Slovak Republic“ including basic methodological notes;

Website:

Statistical Yearbook

— statistical questionnaires forms in national version including methodological notes;

— methodological sheets (descriptions of statistical indicators in detail) in national version.

10.7. Quality management - documentation

Technical projects of statistical surveys and methodological directives Quality indicators of statistical outputs and processes (MET-2/2012) and Application of mathematical-statistical methods for statistical surveys (MET-3/2012) are available for statistical data production.

At present quality reports are elaborated if required by the European regulations in compliance with ESS Handbook fo Quality Reports (EQHQR).

The quality reports will be integrated into the new integrated stat. information system - ISIS (which is being implemented at present) and into the updated internal directives on value-adding processes. selfassessments of stat. surveys and methodological audits (in preparation), incl. analysis and reporting of the results are being integrated into the existing QMS system.


11. Quality management Top
11.1. Quality assurance

Quality policy is defined and made available to the public in documents:

Quality declaration and Quality policy.The SOSR high level statements highlight customer orientation and quality of the SOSR products and services; this is then reflected in the development strategy of the SOSR for the given period of time in: Vision, mission, common shared values.

Quality Manual is covering all elements of the ISO 9001:2008 standard.

There are defined internal directives related to the value adding processes supported by supporting managerial processes and by supporting resource processes.

European Statistics Code of Practice is the backbone of the whole QMS.

11.2. Quality management - assessment

At present the technical projects are elaborated for each statistical survey including all necessary issues related to data entry, data completeness and statistical controls. This process is organised by specialised regional offices of the Statistical Office of the Slovak Republic. The cross-checking is done in the context of the statistical control process. A comparison with the development in previous periods is done.

The quality reports will be integrated into the new integrated stat. information system - ISIS (which is being implemented at present) and into the updated internal directives on value-adding processes. selfassessments of stat. surveys and methodological audits (in preparation), incl. analysis and reporting of the results are being integrated into the existing QMS system.

Regarding the results of particular data production processes the overall quality of the indicator construction production is considered to be as good.


12. Relevance Top
12.1. Relevance - User Needs

Description of users and their respective needs with respect to the statistical data.

Consultations with users are required by statistical act stressing the cooperation with other organisations (ministries and other state organisations) during preparation of the Programme of State Statistical Surveys.

An advisory body the Statistical Council consists of members representing main users (representatives of ministries, state organisation and public institutions).

The Council is the permanent expert advisory body for the President of the SOSR in the field of state statistics. The task of the Council is to draft /submit proposals and recommendations regarding state statistics concepts, to discuss the Programme of the state statistical surveys and other tasks according to the Status on the Statistical Council.

In practice the consultations with users run on bilateral bases as well as within activities covered by the action programme Activities focussing on learning about expectation of key users and on supporting better interpretation and better use of statistical products.

Key users of particular statistics products are listed in Marketing plan:

International organizations – Eurostat.

National institutions – Ministry of Economy of the Slovak Republic (MH SR), National Bank of Slovakia (NBS),  Trade - Union of KOVO.

12.2. Relevance - User Satisfaction

User satisfaction is monitored via “Survey on satisfaction of users with products and services of the SO SR” conducted regularly with two-year periodicity. Evaluation of the user satisfaction survey also includes satisfactions rate (overall and for specified areas as well as for groups of products) and it is submitted together with conclusions and suggestions for improvements to top management meeting for approval.

12.3. Completeness

Trade

100%

Quarterly time series for Divisions 45, 46, 55 and 56 of NACE Rev. 2 are available since January 2000.

Selected market services

100%

Quarterly time series for Divisions 68 – 71, 73, 74, 77 – 82, 85.5-6, 90 - 93, 95, 96 of NACE Rev. 2. are  available since January 2000.

Transportation and storage; Information and communication

100%                  

Quarterly time series for Divisions 49-53; 58-63  of NACE Rev. 2. are  available since January 2000.


13. Accuracy Top
13.1. Accuracy - overall

There were negligible non-sampling errors concerning coverage, measurement and item non-response and processing errors.
Improvement actions include careful formal checks, which are realised in the process of data entry automatically; (compatible with Validation level 0 and 1), informal checks aim of which is to control the complexity and relations among the variables ((compatible with Validation level from 2 to 5). Most of the errors are directly consulted with the reporting units by our regional offices.

13.2. Sampling error

The base data for absolute figures of indicator are surveyed:

-          By cut-off census of enterprises with 20 and more employees registered in the business register and enterprises in the business register with less than 20 employees that are statistically important (the decision about including them into survey of was done by experts of particular activities or have a turnover in excess of EUR 5 million.

-          Stratified random survey of small enterprises with less than 20 employees and

-          Estimation of small entrepreneurs from administrative sources.

 

13.3. Non-sampling error

Non sampling errors include errors of coverage, measurement, processing and item and non-response. We apply various treatments to ensure that errors are minimised. Improvement actions include daily business registry updates, careful logical and accounting controls and constant contact with the reporting units.

SOSR applies various controls at micro data level within the data collection and processing based on data checks. Validation formal checks, which are realised in the process of data entry automatically and informal checks aim of which is to control the complexity and relations among the variables by focusing on informative checks, non-response, anomally and checks of great importance for e.g. outliers. 

Apart from the data reporting in paper format are data collected via electronic system as well. Questionnaire and reporting system provide a lot of arithmetic and logical controls between particular items that are mandatory and optional. The questionnaire cannot be submitted, if not correctly completed without any errors detected by the checking program.

Non-response is treated by the imputation of data from the previous month's survey, up to a maximum of three months.

Treatment at the macro data level include final checks and analysis of aggregates in line with checks of relations. The macro data are verified by computer programs and by responsible domain managers at all aggregation levels.

Under-coverage errors:

The under-coverage didn’t occur. 

Over-coverage:

The reporting units which changed their main activity where not included to the data compilation. The over-coverage rate is 1,5%.

Misclassification errors:

The misclassification didn’t occur.

Contact errors:

The rate of contact errors in the population of enterprises with less than 20 employees is about 41%. 

Multiple listings:

The multiple listings didn’t occur.

Measurement error:

The measurement errors caused by the data recording is eliminated by the system of automated checks included in the data collection system. 

Non-response error:

The unit non-response rate is 43%, mainly in the population of small enterprises with less than 20 employees. The share of these small enterprises on the turnover variable is about 35%.   

Item non-response:

The item non-response occurred for a negligible part of the reporting units, less than 0,1%.

Processing errors:

Assessment of processing errors - there were no processing errors.

Completion/correction methods applied – the were grossed up by modification of weights of the input data

Imputation methods – the data for non-responding units that are verified are imputed. The imputation methods are set up under given strict conditions. The imputation is realised only in case where there is evidence that the reporting units is active. The share of imputations in October 2015 data was 0,5%.

Trade

Response rates for one surveyed period for October 2018 is 76,30%

According to the Specific STS guidelines there was reported response rate:

  1. At the time data are provided to Eurostat:                 76,30%
  2. At the time data are first published nationally:           76,30%
  3. Development during one data collection exercise:     Not available

 Selected market services

Response rates for one surveyed period for October 2018 is 81,97%

  1. At the time data are provided to Eurostat:                 81,97%
  2. At the time data are first published nationally:           81,97%
  3. Development during one data collection exercise:     Not available

Transportation and storage; Information and communication 

Response rates for one surveyed period for October 2018 is in H - 84,18% ; J - 84,24%

  1. At the time data are provided to Eurostat:                H - 84,18% ; J - 84,24%
  2. At the time data are first published nationally:          H - 84,18% ; J - 84,24%
  3. Development during one data collection exercise:     Not available


14. Timeliness and punctuality Top
14.1. Timeliness

There are not differences in timeliness between the different aggregation levels or between the statistical variables. Montly t+45.

14.2. Punctuality

All deadlines have been respected.


15. Coherence and comparability Top
15.1. Comparability - geographical

The same statistical concepts are applied for the entire area of Slovak Republic.

15.2. Comparability - over time

Comparable time series are available since January 2000.

15.3. Coherence - cross domain

The following data comparison analysis is done:

1) Comparison of monthly survey results with quarterly data surveyed for the purposes of national accounts (for the calculation of  quarterly GDP);

2) Comparison with structural business statistics data;

3) A regular meeting of the STS experts with the national accounts experts is organised;

4) The trends of the STS data are compared with the business tendency surveys.

The analysis shows very good compliance level in case of parts of population surveyed exhaustively. Some differences appear when comparing data from monthly, quarterly and yearly samples, which are the subject of further detailed data analysis.

15.4. Coherence - internal

There are no problems with internal consistency. At present chain-linking is not applied.


16. Cost and Burden Top

In September 2013 the cost burden measurement was realized related to the STS regulation requirements.

In case of turnover in services the following results are available:

Cost (NSI) in hours per year 2012: 10 904

Burden (respondents) in hours per year: 10 191 


17. Data revision Top
17.1. Data revision - policy

Revisions are in conformity with standards, time-tested and transparent. They are described in decision ROZ-3/2018 Revision Policy of the SOSR.

The same revision policy is applied to STS data released nationally and transmitted to Eurostat.

According to Revision Policy of the SO SR the revised data are accompanied by all necessary explanations (reasons, character, etc.), they are accessible via the SOSR Portal.

The Revision Policy and Calendar of Revisions of the SOSR as well as all necessary explanations are accessible via the SOSR Portal. 

The Revision Policy of the SO SR

Calendar of Revisions

We distinguish:

Routine revisions – regular revisions of data not influenced by change of methodology. In general, the monthly/quarterly data is considered to be preliminary.

Routine revisions of data may be necessary due to data available from quarterly enterprise surveys, new data received from reporting units, correction of price indices or corrected data from reporting units. The revised data for the last 3 months of the quarter are published together with the preliminary results of the following month/quarter. The publication of the revised data is done periodically in line with Calendar of revisions    

Extra-ordinary revisions – not scheduled in the Calendar of revisions. Extra-ordinary revisions include revisions of definitive data due to changes of methodology, changes of classifications, change of base year, changes of mathematical/statistical methods of data calculation. Those revisions may result in a break in time series of data. The users are informed via Press releases in advance.

The policy on vintage database is laid down in the Revision Policy of SOSR. Practical implementation of the policy is being prepared in the statistical information system.       

Vintage database of raw data exists in source database and is not publicly accessible. Data and documents regarding the revision is kept. General information about revision and methodological explanation is published, if relevant.

Coherence of the revision policy is respected for the data released nationally and disseminated to Eurostat.

17.2. Data revision - practice

The primary source of routine revisions is the need of data revisions due to data available from quarterly enterprise surveys, new data received from reporting units or corrected data from reporting units. The revised data for the last 3 months of the quarter are published together with the preliminary results of the following month. The publication of the revised data is done periodically in line with Calendar of revisions.   


18. Statistical processing Top
18.1. Source data

Trade

Exhaustive survey of enterprises with 20 and more employees and of small enterprises and sole proprietors with an annual turnover in excess of 5 Mill.EUR.

Sample of small enterprises (annual turnover < 5 Mill. EUR).

Sample of sole proprietors (annual turnover < 5 Mill. EUR).

Stratification criteria: Activity, size classes.

The sample is calculated from each combination of the two criteria: activity, number of employees.

Activity Groups: Division 45, 46, 55, 56 of NACE Rev. 2.

Number of employees: 0-4, 5-19.

Every year one third of the sample is changed.

Selected market services

Exhaustive survey of enterprises with 20 and more employees and of small enterprises with annual turnover in excess of 5 Mill. EUR.

Stratified random sample of small enterprises.

Estimates of sole proprietors.

Stratification criteria: Activity, size classes and region (NUTS 3).

The rate used for sampling is 18 % for each combination of the three criteria: activity, number of employees, region).

Activity Groups : 68 – 71, 73, 74, 77 – 82, 85.5-6, 90 - 93, 95, 96 of NACE Rev. 2.

Number of employees : 0-9, 10-19.

Region (NUTS 3) : 1, 2, … , 8.

Every year one third of the sample is changed.

Transportation and storage

 Section H - TRANSPORTATION AND STORAGE of NACE Rev. 2.

 Exhaustive survey –  enterprises NACE Rev.2=50, 51;

NACE Rev.2=49, 52, 53 enterprises and tradesmen with 20+ employees;

small enterprises with turnover in excess of  5 Mill. EUR and more NACE Rev.2=49, 52, 53

Stratified random sample of small enterprises - enterprises with 0-9, 10-19 employees NACE Rev.2=49, 52, 53

Estimated from administrative sources  - tradesmen with 0-4, 5-9, 10-19 employees

The sample is calculated from each combination of the three stratification criteria: 

Activity Groups (4-digit NACE),

Number of employees: 0-9, 10-19.

Region (NUTS 3): 1, 2, … , 8.

Every year one third of the sample is changed.

Information and communication

Section J - INFORMATION AND COMMUNICATION of NACE Rev. 2.

 Exhaustive survey –  NACE Rev.2=58-63 enterprises and  tradesmen with 20+ employees;

small enterprises with turnover in excess of  5 Mill. EUR and more NACE Rev.2=58-63

Stratified random sample of small enterprises - enterprises with 0-9, 10-19 employees NACE Rev.2=58-63

Estimated from administrative sources  - tradesmen with 0-4, 5-9, 10-19 employees

 The sample is calculated from each combination of the three stratification criteria: 

Activity Groups (4-digit NACE),

Number of employees: 0-9, 10-19.

Region (NUTS 3): 1, 2, … , 8.

Every year one third of the sample is changed.

18.2. Frequency of data collection

Monthly data collection.

18.3. Data collection

Data collection is organized by specialised regional offices of the SO SR in Bratislava, Žilina and Prešov.

The electronic data collection of monthly/quarterly data is compulsory since the 1st January 2016 in line with the obligation laid down in the Slovak National Council law No 326/2014 (Digest) amending the Slovak National Council law No 540/2001 on the state statistics. 

Formal and logical checks are realised in the process of data entry automatically; (compatible with Validation level 0 and 1), informal checks aim of which is to control the complexity and relations among the variables ((compatible with Validation level from 2 to 5). Most of the errors are directly consulted with the reporting units by our regional offices.

Data should be submitted on the 17th calendar day following the end of the reference month. The non-responding units are informed about their reporting duty and contacted by regional offices again. There are no problems with reporting discipline in the case of big enterprises, nevertheless the situation in this area shows the decreased tendency in the last years.

The basic step in the process of unit non-response calculation is the analysis of population with regard to the status of activity of reporting units. For this purpose we use the classification of special response and non-response cases. The particular codes describing active and non-active units are allocated to every reporting unit. Afterwards we define eligible units: they are all active responding and non-responding units. In some cases it is not possible to obtain any information about the unit. In this case we suppose there is the same share of active and non-active units as in the known population. The part corresponding to active units we consider to be non-responding units.

18.4. Data validation

The data entry, data completeness and statistical control are organised by specialised regional offices of the SO SR. 

It has been distinguished between two levels of checking:

1/ Formal checks, which are realised in the process of data entry automatically; (compatible with Validation level 0 and 1)

2/ Informal checks aim of which is to control the complexity and relations among the variables ((compatible with Validation level from 2 to 5)

According to the importance there are classified 2 basic types of informal checks:

 I – Informative check- this check gives the additional information, which is important for the following process of corrections. It informs also about some inconsistencies in the state of fulfilment of the questionnaire, about item non-response, exceeding stated limits etc. 

Z – Check of great importance - it is mostly check indicating the exact error and it must  be always corrected or explained. 

Most of the errors are directly consulted with the reporting units by our regional offices.

18.5. Data compilation

Non-response is treated by the imputation of data from the previous month's survey, up to a maximum of three months.

1. The results of small enterprises are grossed up using Horwitz -Thomson estimator with regard to the activity of the enterprise. The initial weights are modified according to the non-response rate of non-active units.

2. Estimates of turnover realised by sole proprietors are made on the base of issued trade 1.licences according to Act no. 455/1991 [Digest]. The number of issued trade licences is used for the estimation.

18.6. Adjustment

Working days adjustment of turnover data is done using Demetra software, method Tramo/Seats which takes into account the number of working days, public holidays and fractions of working days in the month.  

Regression; 7 regressors: 7 trading day.


19. Comment Top

No comment.


Related metadata Top


Annexes Top
Seasonal Adjustment_metadata_Slovakia_SOSR_Turnover in Services