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| COM107C - Turnover volume indices in retail trade, working day adjusted 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 operators 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 |
The adjusted series with working days number was obtained by eliminating from unadjusted series these effects by means of correction coefficients, set up according to the regression model (additive or multiplicative).
Regression models used for each series are set up at the begining of each year involving the recalculation of adjusted series calculated in the previous year (recalculation due to the adopted models change, number of regresors used and number of available observations).
Aggregate levels were adjusted by direct method supposing direct adjustment of aggregated series.
Using the direct method could lead to some inconsistencies in data series (respectively, aggregates should not be always ranging between the values of origin components).
The series adjusted by the effect of working days and seasonality is obtained by removing the seasonal component from the series adjusted by the effect of working days.
The value indices of the turnover in retail trade are Laspeyres indices and are calculated as non-deflated weighted indices. The weights used for aggregation are calculated based on the turnover according to the results of the Structural Survey in Enterprises from the reference year (2005).
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| Last update |
FEB 14, 2013 |
| Observations |
Statistical survey carried out according with Eurostat recommendations starting with 2000. Adjusted series according to the working days number and seasonality was rectified as a result of updating the models used for data adjustment. |
| Responsible person |
Miu Cristina; miu.cristina@insse.ro; tel. 0213181824/1474 |
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