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For any question on data and metadata, please contact: Eurostat user support |
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1.1. Contact organisation | Croatian Bureau of Statistics (CBS) |
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1.2. Contact organisation unit | Labour Market Statistics Department |
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1.5. Contact mail address | Branimirova 19 – 21, 10 000 Zagreb |
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2.1. Data description | |||
With the Structure of Earnings Survey we wish to provide insight into the structure of earnings, i.e. to present different wage categories (earnings, bonuses, holiday bonus, paid hours, paid overtime, days of holiday leave, etc.) by different characteristic of business entities or their units (size class, activity etc.) and by characteristic of employees (sex, education, occupation, etc.). Structure of Earnings Survey (SES) was introduced in statistical system of the Republic of Croatia for the first time in 2011 as a component in “IPA 2008 – Technical assistance in development of selected areas of statistics” (programme financed by European Union). |
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2.2. Classification system | |||
National Classification of Activities, 2007 version, comparable to the international Statistical Classification of Economic Activities in the European Community NACE Rev. 2 National Classification of Occupations, NKZ 10., comparable to the International Standard Classification of Occupations ISCO-08, was used in the coding of occupations International Standard Classification of education ISCED 2011 |
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2.3. Coverage - sector | |||
Target population are all enterprises located in Croatia which employ at least 10 employees and were active in October 2018. NACE Rev.2 activity sections B-S were covered. |
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2.4. Statistical concepts and definitions | |||
Key variables: Average annual / monthly / hourly earnings per person in paid employment by different wage categories, by different characteristics of business entities and by characteristics of employees; |
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2.5. Statistical unit | |||
Statistical unit is enterprise. |
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2.6. Statistical population | |||
The Structure of Earnings Survey covers all persons in paid employment having employment contract with the enterprises selected in the SES sample. The survey did not cover persons working based on work agreements or author's contracts, contracts with juveniles’ and students’ employment services, pupils and students in training. |
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2.7. Reference area | |||
The Republic of Croatia. |
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2.8. Coverage - Time | |||
2018 and October 2018 as a reference month. |
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2.9. Base period | |||
No base period. |
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3.1. Source data | |||
Sampling frame Target population are all enterprises located on the teritory of the Republic of Croatia employing at least 10 employees and active in October 2018 NACE Rev.2 activity sections B-S were covered. The sampling frame was selected from the Statistical Business Register (SBR); the most appropriate source for sampling frame available in the CBS. Sampling frame for SES 2018 consists of 17 101 enterprises that fulfil above mentioned criteria. Sample Two stage stratified sampling was used in the process of selecting sample. At first stage enterprises based on the following 3 criteria: NACE Rev. 2 activity section, size of an enterprise and NUTS2 region were selected from the sampling frame. This has been done by CBS’s Sampling Department. Stratification of the targeted population according to 3 stratification criteria is presented in the attached document (SES2018_stratification of sample.xlsx).The final size oa a sample is 4 500 enterprises. Second stage of sample selection was done on the field, by respond units selected in the sample – enterprises were asked to select employees for which they were then asked to deliver requested data. Clear explanations on how to select employees were provided in the questionnaire. The procedure was explained through 4 steps. Annexes: Stratification of sample_SES2018 |
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3.2. Frequency of data collection | |||
Data on SES are collected every four years, in accordance to Commission Regulation (EC) No 1738/2005. |
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3.3. Data collection | |||
Data collection for SES 2018 was entirely conducted under jurisdiction of CBS’s Labour Market Statistics Department. For the purposes of data collection e-questionnaire was created. Also, respondents could choose to deliver data in paper form (paper questionnaire was also available). |
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3.4. Data validation | |||
All the data collected were validated throught set of logic controls. |
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3.5. Data compilation | |||
Not requested. |
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3.6. Adjustment | |||
Data are not adjusted. All relevant national legislation is in line to regulation requirements. |
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4.1. Quality assurance | |||
Key quality indicators are calculated regularly. |
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4.2. Quality management - assessment | |||
Standard quality report accompanies every SES survey in accordance to Commission Regulation (EC) No 698/2006. |
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5.1. Relevance - User Needs | |||
Major national users of SES data are different government bodies especially Office of the Gender Equality Ombudsperson. Major foreign user of data on SES is Eurostat. Anonymised microdata are also available on CD-ROM for researchers, prepared by Eurostat. |
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5.2. Relevance - User Satisfaction | |||
Not assessed. |
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5.3. Completeness | |||
All mandatory variables are compliled and transmitted to Eurostat. |
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5.3.1. Data completeness - rate | |||
100% |
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6.1. Accuracy - overall | |||
More in detail described under 6.2 - 6.6. |
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6.2. Sampling error | |||
Coefficients of variations are calculated for variables 4.2 Gross earnings in the reference month and variable 4.3 Average gross hourly earningsin the reference month. |
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6.2.1. Sampling error - indicators | |||
Please see the attached document Coefficients of variation. Annexes: Coefficients of variations |
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6.3. Non-sampling error | |||
More in detail described under 6.3.1 - 6.3.4. |
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6.3.1. Coverage error | |||
No cases of over-coverage, nor under-coverage were detected. |
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6.3.1.1. Over-coverage - rate | |||
No cases of over-coverage |
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6.3.1.2. Common units - proportion | |||
Not applicable. |
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6.3.2. Measurement error | |||
Each question in the questionnaire has a clear explanation of what should be included an also what should be excluded from data presented. All the data entered in application prepared for data entry are tested with logic control. Logic control contains a set of treshold values which the values of variables should not exceed. |
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6.3.3. Non response error | |||
See 6.3.3.1 and 6.3.3.2 |
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6.3.3.1. Unit non-response - rate | |||
The total unit response rate was 56,33%. Annexes: Response rates |
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6.3.3.2. Item non-response - rate | |||
No cases of item non-response. In case mandatory data were missing, enterpise was contacted to check and corrected if necessary. |
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6.3.4. Processing error | |||
See 6.3.4.1. |
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6.3.4.1. Imputation - rate | |||
No imputation was performed, nor statistical editing. |
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6.3.5. Model assumption error | |||
Models are not used for this data collection. |
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6.4. Seasonal adjustment | |||
Not applicable. |
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6.5. Data revision - policy | |||
Once data production process is finalised data are not beeing revised. They are considered as final. |
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6.6. Data revision - practice | |||
Once data production process is finalised data are not beeing revised. They are considered as final. |
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6.6.1. Data revision - average size | |||
No differences between provisional and final data. |
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7.1. Timeliness | |||
See 7.1.1 and 7.1.2. |
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7.1.1. Time lag - first result | |||
Data become available in December 2020. |
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7.1.2. Time lag - final result | |||
Data become available in December 2020. |
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7.2. Punctuality | |||
Response units selected to participate in SES data collection were notified about participation by a mailed circular letter. This letter contained general information about survey guidelines on data delivery and contact information in case of any technical or methodological questions Methodological guidelines were attached to circular letter with detailed instructions on web questionnaire, sampling instructions and definitions of variables. Initially, it was possible to fill in data using on-line questionnaire from May 1st until the May 30th 2019, but due to technical problems this deadline was extended for two weeks. Due to the fact that response rate at this stage was relatively low, reminders were sent via e-mail from July to September 2019 to those respond units that didn’t respond. During data collection all data from incoming questionnaires were entered in prepared application and also simultaneously logically tested. In case there were some errors in data, respondents were contacted via telephone or e-mail and asked to deliver corrections or to verify that delivered data are correct. Data processing was interrupted due to earthquake and lockdown as consequences of the COVID pandemic. First data were transmitted to Eurostat on 13th November 2020. After acknowledged from Eurostat data had to be validated two times. Finally, clear database was retransmitted to Eurostat on 27th November 2020. |
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7.2.1. Punctuality - delivery and publication | |||
Not applicable. |
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8.1. Comparability - geographical | |||
SES 2018 was in Croatia prepared and conducted fully in line with EU regulations. |
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8.1.1. Asymmetry for mirror flow statistics - coefficient | |||
Not applicable. |
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8.2. Comparability - over time | |||
In comparision with SES 2014 all methods remained the same. |
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8.2.1. Length of comparable time series | |||
SES is carried for the third time; 3 waves are available: SES 2010, SES 2014 and 2018. See attached comparison over time. Annexes: Coherence SES2018 and SES2014 |
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8.3. Coherence - cross domain | |||
The only possible data source to which data from SES could be compared is regular Monthly survey on persons employed and wages (RAD-1). See attached cross domain comparison. For this purposes data on monthly gross earnings per employee for October 2018 from both surveys was compared. The differences in data come out from coverage. Data from SES 2018 are sample based survey and those from RAD-1 relate to all legal entities with 1+ employees (full coverage). Annexes: Coherence SES2018 and RAD-1 |
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8.4. Coherence - sub annual and annual statistics | |||
Not applicable. |
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8.5. Coherence - National Accounts | |||
Not available. |
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8.6. Coherence - internal | |||
Not applicable. |
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9.1. Dissemination format - News release | |||
No national News Release. |
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9.2. Dissemination format - Publications | |||
No national publications. |
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9.3. Dissemination format - online database | |||
No on-line publications. |
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9.3.1. Data tables - consultations | |||
No data tables published. |
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9.4. Dissemination format - microdata access | |||
Anonymised microdata are available on CD-ROM for researchers, prepared by Eurostat. |
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9.5. Dissemination format - other | |||
Not applicable. |
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9.6. Documentation on methodology | |||
No methodolgical document published; only internal production and methodological documentation is available. |
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9.7. Quality management - documentation | |||
Not applicable. |
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9.7.1. Metadata completeness - rate | |||
[Not requested] |
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9.7.2. Metadata - consultations | |||
[Not requested] |
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Not assessed. |
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11.1. Confidentiality - policy | |||
Individual data are protected by the Official Statistics Act. |
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11.2. Confidentiality - data treatment | |||
[Not requested] |
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No comments. |
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