ANNUAL QUALITY REPORT

Transcription

1 REPUBLIC OF SLOVENIA ANNUAL QUALITY REPORT FOR THE SURVEY STRUCTURAL BUSINESS STATISTICS FOR YEAR 2007 Prepared by: Barbara Dremelj Ribič, Nataša Pušlar Car Date: /8

2 Table of contents 0 Basic Data Relevance Share of Missing Statistics Accuracy Sampling Errors Sampling Error Non-Sampling Errors Non-Response Errors Unit Non-Response Rate Item Non-Response Rates Imputation Rate Coverage Errors Over-coverage Errors Misclassification Rates Measurement Errors Editing Rate Timeliness and Punctuality Timeliness Timeliness of the First Release Timeliness of Final Results Punctuality Punctuality of the First Release Accessibility and Clarity Accessibility Channels Used for Dissemination of the Results Share of Used Channels Means Used for Dissemination of the Results Share of Means Used Clarity Results Presented Level (Detail) of Presentation Comparability Comparability over Time Length of Comparable Time Series Breaks in Time Series Geographical Comparability Comparability with Other Members of the European Statistical System Seasonal Adjustment Coherence Coherence between Provisional and Final Data Coherence between Provisional and Final Data Coherence with the Results of the Reference Survey Reference Survey Coherence with Reference Data Costs and Burdens Survey Costs of the Office Costs and Burden of Reporting Units /8

3 0 Basic Data Brief Description of the Survey The purpose of structural business statistics is to monitor the operation of enterprises and to assure internationally comparable data by taking into consideration European standards on structural business statistics and the European System of National Accounts. The calculated indicators enable the analysis of events and structural changes in the business population, and provide basic information for preparing market analyses and making business decisions in the enterprises. In addition, they are the basis for the calculation of gross domestic product and the estimation of basic macro-economic categories of national accounts. Structural business statistics measure the results of enterprises, investments, employment and labour costs, and investments in research, development and human resources. Observation Units The observation units are enterprises which are registered to perform predominantly market activity on the territory of the Republic of Slovenia and which were active at least for a part of the observation period. The operation of enterprises with more than half of their turnover achieved through market activity is taken as a whole. The main activities performed are from the following areas of the Standard Classification of Activities (Decree on the Introduction and Use of the Standard Classification of Activities, OJ RS, No. 2/2002): Mining and quarrying (C), Manufacturing (D), Electricity, gas and water supply (E), Construction (F), Wholesale & retail, repair motor vehicles, personal & household goods (G), Hotels and restaurants (H), Transport, storage and communication (I), Real estate, renting and business activities (K). Enterprises are active if they had turnover or labour costs during the observation period. Coverage Structural business statistics covers market business entities which perform activities from C Mining and quarrying, to K Real estate, renting and business activities (without J Financial intermediation) of the Standard Classification of Activities 2002 and were active at least for part of the observation period. Enterprises are active if they had turnover or labour costs during the observation period. The framework for the activities surveyed was the statistical business register, excluding non-market enterprises (SKIS 13 and 15) and inactive enterprises. In 2007, there were such enterprises. Key Variables - turnover, - purchase of goods and services, - gross investment in tangible goods, - persons employed. Key Statistics - turnover - value added at factor cost - purchase of goods and services - gross investment in tangible goods - persons employed Questionnaire There is no questionnaire for structural business statistics. Data are obtained primarily from administrative sources. 3/8

4 1 Relevance 1.1 Share of Missing Statistics The share of missing statistics (R3) for temporary data amounted to 0. For final data, which are compared to temporary data more detailed and cover higher number of statistics, the total value of indicator on missing data R3 = 0,27. 2 Accuracy 2.1 Sampling Errors Sampling Error Since in principal there is a complete coverage, the sampling error is not calculated. 2.2 Non-Sampling Errors Non-Response Errors Unit Non-Response Rate Since statistics are calculated on the basis of administrative or existing sources, the non-response rate is assumed to be 0. That is to say, for each unit of the observed population, we have data on at least one variable (from administrative sources) Item Non-Response Rates In certain cases the applied administrative sources are not sufficiently broken down, or do not contain all the necessary variables. The item non-response occurs also for variables the data for which are obtained from existing sources (surveys). For example, for the set of variables obtained from the investment survey, the item non-response rate is the same as the unit non-response rate for this survey Imputation Rate For the time being, there is no estimate of missing values. A certain estimate is being made for individual sources which are insufficiently broken down. For example, the micro-variable Cost of goods and material sold is missing in the turnover tax declaration. To calculate this variable at the lowest level of SKD (5-digit SKD or an appropriate higher level, if a change in the SKD occurs between individual years) the share of such variable (purchase price of the goods and material sold) should be considered in the costs of goods, material and services (this variable is present in the declaration) from the final accounts for individual entrepreneurs Coverage Errors Over-coverage Errors Over-coverage is possible when a unit is registered in the activity under observation, but it actually performs some other activity which is not the subject of observation. Shares of over-coverage are not calculated at the moment, since data on such units are not available. 4/8

5 Misclassification Rates The share of misclassified units can not be calculated, since there are not data on units with incorrect registration Measurement Errors Editing Rate The share of data editing could be calculated, since automatic corrections involve a change in the indicator of variables. 3 Timeliness and Punctuality 3.1 Timeliness Timeliness of the First Release According to the Regulation, the results of the First Release should be prepared within 10 months following the end of the reference period (t+304). At the same time, data should also be communicated to Eurostat. The results are published about a less than month later (t+318) Timeliness of Final Results According to the Regulation, the final data should be prepared within 18 months following the end of the reference period (t+546). At this time, data should also be communicated to Eurostat. Data are published about 1 month later (t+577). 3.2 Punctuality Punctuality of the First Release The predicted and actual dates of publication in respect of data for 2007 were the same. 4 Accessibility and Clarity 4.1 Accessibility Channels Used for Dissemination of the Results Table 4.1: Channels for dissemination Ser.No. Channel Used 1 Web Site YES 2 Ad hoc prepared data for users according to their specification NO 3 Digital media (data on diskettes, CD...) NO 4 Data, available through telephone answering machine NO 5 Data presented at the News Conference NO 5/8

6 6 General printed publications YES 7 Thematic printed publictions NO 8 Data bases (e.g. Social Science Data Archives ) YES 9 Statistically protected micro data NO Share of Used Channels The share of used channels was 33% Means Used for Dissemination of the Results Table 4.2: Dissemination methods Ser.No. Mean Used 1.1 SORS Web Site YES 1.2 Web Sites of the institutions within the Slovene statistical system YES 1.3 Data bases, accessible through internet (SDB, SISTAT PC AXIS) YES 1.4 Web Sites of international organisations YES 1.5 Thematic Web Sites (e.g. Census 2002) NO 2.1 Written requests YES 2.2 Telephone requests YES 3.1 CD, diskettes, disks NO 3.2 Mediation of data via the net ( , protocols) YES 4.1 Data, available from the telephone answering machine NO 5.1 Data, presented at the News Conference NO 6.1 Yearbook YES 6.2 Slovenia in Figures YES 6.3 Some Important Data on the Republic of Slovenia NO 7.1 First Release YES 7.2 Rapid Reports NO 7.3 Results of Surveys NO Special (e.g. Review on transport movements) and occassional (e.g. NO 7.4 Censuses in Slovenia ) publications 7.5 Eurostat publications YES 7.6 Publikacations of other international organisations (OECD, IMF) YES 8.1 Data bases, intended for internal use in the Office YES 8.2 Bases, accessible also to other users than those within the Office NO Share of Means Used The share of means used for dissemination was 59%. 4.2 Clarity Results Presented Data are displayed in absolute values (number, thousand EUR). In the Statistical Yearbook graphs are also presented. There are no seasonally adjusted values. 6/8

7 4.2.2 Level (Detail) of Presentation Data are presented by the activities, by the activities and size classes (of employees and of turnover), and by activities and cohesion regions. The latter were published for the reference year 2007 for the first time. Data, presented broken down only by the activity criteria, are broken down to the level of classes, in the cases when the additional criteria are used, that is size classes and regions, data are broken down to the level of groups and divisions respectively. 5 Comparability 5.1 Comparability over Time Length of Comparable Time Series The time series exists as of the reference year The value of the indicator of the length of comparability of time series is therefore Breaks in Time Series There is no break in the time series, except for investments where, from 2005 the INV-2 survey is also considered as a source of data. 5.2 Geographical Comparability Comparability with Other Members of the European Statistical System Since data are prepared pursuant to regulations which refer to structural business statistics, they are comparable with the data of other EU Member States. 5.3 Seasonal Adjustment No methods of seasonal adjustment are applied for this survey. 6 Coherence 6.1 Coherence between Provisional and Final Data Coherence between Provisional and Final Data Provisional and final data do not differ much. Provisional and final data, measured for one of the key variable Turnover and on the level of sections, were completelly coherent for the sections C, E and H (coherence indicator = 0). The values of coherence indicator (in percentage points) for the remaining sections amounted to: D (0,43), F (0,69), G (0,77), I (2,06) and K (4,48). 7/8

8 6.2 Coherence with the Results of the Reference Survey Reference Survey Source of comparison: Short-term statistics. These are comparisons which involve several monthly surveys (TRG-M, STOR-M ), and consideration of VAT. Variables compared: turnover Coherence with Reference Data Data deviate to a certain extent. Problems occur in particular in relation to larger or dominant enterprises in activities, which deliver data for short-term statistics. The data for December are problematic, since after publication this index is the final data. 7 Costs and Burdens 7.1 Survey Costs of the Office Number of working hours spent 3839 Notes: Only the effective working hours on the survey (without annual leave, managerial hours, etc.) are taken into account. 7.2 Costs and Burden of Reporting Units Since data are obtained from existing administrative and statistical sources, no additional burden (or related costs) is incurred by the reporting units. 8/8