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| COM108A - Turnover volume indices in wholesale and retail, maintenance and repair of motor vehicles and motorcycles, unadjusted series - base year 2005 |
| Definition |
The net turnover is calculated by summing up the invoiced returns from the sale of goods and commodities, the performance of works and services. Turnover does not include VAT, excise duties, subsidies received from public authorities or EU institutions and income from sale or transfer of fixed assets. The Nomenclature of economic operator?s monthly providing data includes economic operators having industry as main activity divisions 47 (CANE Rev. 2.) |
| Periodicity |
Monthly |
| Data sources |
Statistical survey on turnover in trade and services details |
| Methodology |
Turnover volume indices in retail are of Laspeyres type and are calculated under methodological conditions and comparable prices. To express the values of current period in the prices of the reference period, deflator price indices (consumer price index) are used.The first obtained indices are at class/group level CANE Rev.2, then by successive aggregations indices at aggregated levels are obtained. The weights used at aggregation are calculated based on turnover according to the results of Structural Business Survey in the reference year (2005).
The data for the year 2008 period were recodified according to the new Classification of Activities in the National Economy (CANE Rev. 2), harmonised with the European classification in the field (NACE Rev. 2), and the data series were recalculated according to the new classification and as a result of changing the base year and the weighting system used to calculate the indices. The recalculation was based on the data collected in 2008, according to both CANE revisions, through the statistical survey on short-term indicators in industry.The data series for the 2000-2007 period was estimated according to CANE Rev. 2 on the basis of the matrix of conversion between the two versions of the classification. The matrix was built using the results of the survey meant to improve the statistical register and updated with information collected through the structural business survey.
Changes due to implementation of new classifications, the transition to a new reference year (2005, replacing the reference year 2000) and changes in the weighting system have generated changes of data published previously.
Volume/value indices of turnover are provisional and can be reviewed periodically, based on the corrections done retroactively by the enterprises in the sample, regarding data previously filled in.
In order to adjust the series, the DEMETRA programs package was used (TRAMO/SEATS method) estimating the effect of working days number different from one month to another and calendar effect (orthodox Easter, bisect year, and other national holidays) as well as the identification and correction of outliers (occasional, transitory or permanent level changes) and interpolation of missing values.
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| Last update |
FEB 14, 2013 |
| Observations |
Statistical survey carried out according with Eurostat recommendations starting with 2000. |
| Responsible person |
Miu Cristina; miu.cristina@insse.ro; tel. 0213181824/1474 |
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