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| CNS105M - Indices of construction works - working day adjusted series - base year 2021 |
| Definition |
Indices of construction works are volume indices and measures the evolution of construction activities results from one period to another.The survey is carried out on monthly basis and concern the enterprises with legal status, whose main activity belongs to CANE Rev. 2 section F ? Construction and whose income are mainly entailed by construction works carried out, fulfilling the legal refunding conditions (based on payment documents) expressed in prices related to the reporting period (current prices less of VAT). Volume indices in construction are determined by deflating the value data with the cost indices in construction by work type, respectively construction object. Indices of construction works per total are calculated as weighted arithmetic mean of indices by work type or construction object. The weights used for the aggregation are calculated based on the turnover according to the results of Structural Business Survey in the reference year (2021) . |
| Periodicity |
Monthly |
| Data sources |
Statistical survey on construction work performed under contract details |
| Methodology |
In order to adjust the series, the JDEMETRA+v.2.2.0 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. The adjusted series with working days number was obtained by eliminating from unadjusted series these effects by means of correction coefficients. The adjusted series of working days effect and seasonality is obtained by eliminating seasonal component from adjusted series of working days effect. 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). |
| Last update |
SEP 17, 2024 |
| Observations |
The data are available since 2005. |
| Responsible person |
Isofache Ana-Maria; anamaria.isofache@insse.ro; tel. 0213181824/2091 |
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