Production in construction

1.1. Contact organisation

Statec - Institut national de la statistique et des études économiques

1.2. Contact organisation unit

Unit ENT4 "Business indicators, transport and tourism statistics"

1.3. Contact name

Confidential because of GDPR

1.4. Contact person function

Confidential because of GDPR

1.5. Contact mail address

B.P. 10 - L-4401 Belvaux

1.6. Contact email address

Confidential because of GDPR

1.7. Contact phone number

Confidential because of GDPR

1.8. Contact fax number

Confidential because of GDPR

2.1. Metadata last certified

18 August 2025

2.2. Metadata last posted

18 August 2025

2.3. Metadata last update

18 August 2025

3.1. Data description

The construction production index is a monthly short-term indicator used for the business cycle analysis.

3.2. Classification system

NACE Rev2

3.3. Coverage - sector

NACE Rev2 F

3.4. Statistical concepts and definitions

Production defined as in Regulation CE 1503/2006

3.5. Statistical unit

observation and reporting unit: kind-of-activity unit

3.6. Statistical population

population for NACE Rev2 F according to the Luxembourg business register: 3520 units

3.7. Reference area

Grand-Duchy of Luxembourg

3.8. Coverage - Time

monthly figures from 2000 on

3.9. Base period

Base 100 in 2021

indices

month

6.1. Institutional Mandate - legal acts and other agreements

European Business Statistics Regulation:

Regulation (EU) 2019/2152 of the European Parliament and of the Council on European business statistics, repealing 10 legal acts in the field of business statistics (EBS-Regulation)
Commission Implementing Regulation 2020/1197 laying down technical specifications and arrangements pursuant to Regulation (EU) 2019/2152 of the European Parliament and of the Council on European business statistics repealing 10 legal acts in the field of business statistic (General Implementing Act)

National context :

Statec is the National Institute of statistics and economic studies of the Grand Duchy of Luxembourg. Statec's administration is placed under the authority of the Ministry of the Economy and Foreign Trade. It is professionally and scientifically independent, i.e. it sets its own work programme in accordance with national and European statistical legislation, produces and disseminates data in complete neutrality.

The Law of July 10, 2011 on the organisation of the National Institute for Statistics and Economic Studies sets out the missions of Statec and its internal organisation. These missions are to provide a public information service of high quality to public and private decision-makers as well as to citizens. Statec is committed to produce statistics, analyses and studies giving a detailed, reliable and objective image of the society of Luxembourg.

Statec coordinates the statistical system of Luxembourg, organised according to the principle of statistical centralisation. For this purpose it widely relies on collaboration with other producers of data as well as with public and private research centres. Statec so centralises data available from public authorities to carry out its studies, but also to make them available to its users on a single platform. With the new law of July 10, 2011, applied scientific research is added to Statec’s missions.

6.2. Institutional Mandate - data sharing

There is no general datasharing. Nevertheless, results are transmitted to international organisations such as OECD, UN, etc.

7.1. Confidentiality - policy

STATEC guarantees the non-disclosure of confidential information when the statistical results are disseminated, except for foreign trade statistics. Regarding the latter, the detailed data that allows a resident exporter or importer to be indirectly identified is only kept confidential if the concerned economic operator sends a request for this to STATEC.

7.2. Confidentiality - data treatment

The ESS confidentiality rules are applied if disaggregated results are requested on demand.

8.1. Release calendar

There is no official national release calendar.

8.2. Release calendar access

There is no official national release calendar.

8.3. Release policy - user access

The release days are the days data are transmitted to Eurostat. According to the principle of independence, data is released to all users at the same time.

There is a monthly transmission to Eurostat according to the delays of transmission foreseen in the STS (Short-term business statistics)-Regulation.

10.1. Dissemination format - News release

News release available in paper format and on internet. It is also transmitted to the media and the registered users.

10.2. Dissemination format - Publications

Monthly publication "Indicateurs rapides B2" available on internet and in paper format.

10.3. Dissemination format - online database

There is no online database, but historical figures are available on request.

10.4. Dissemination format - microdata access

There is no microdata access.

10.5. Dissemination format - other

Results are transmitted to Eurostat in the requested format. Information on other disseminations are not available (for example taylor-made requests).

10.6. Documentation on methodology

There are no national methodological documents available except STS variable definitions. Statec uses the methodology published in the STS manual.

10.7. Quality management - documentation

There is no document on quality management available.

11.1. Quality assurance

There is no specific quality management concerning these indicators.

The quality of the indicator is compliant with Eurostat recommendations.

Checks carried out along the production chain of the indices.

11.2. Quality management - assessment

The quality of the indicator is compliant with Eurostat recommendations.

Checks carried out along the production chain of the indices.

12.1. Relevance - User Needs

Results are needed by Eurostat according to the European STS Regulation. There is no further information available of the relevance of this indicator for users, nevertheless, the results are regularly published and commented by media and professional stakeholders (trade unions, employers associations, etc.)

12.2. Relevance - User Satisfaction

Not available for this specific indicator, but the user satisfaction for Statec's products is very high according to a user's survey.

Annexes:
La confiance dans les statistiques publiques

12.3. Completeness

Eurostat's requirements in terms of time series are fulfilled.

13.1. Accuracy - overall

Not available: there are no calculations on statistical errors and bias. For practical and budgetary reasons, this indicator is produced with raw data provided by a panel of the main KAU's in construction.

13.2. Sampling error

The sampling error is not available

13.3. Non-sampling error

The response rate for 09-2024 is 100%.

14.1. Timeliness

This indicator is produced after +/- 55 days after the end of the reference period.

14.2. Punctuality

This indicator is disseminated +/- 55 days afterthe end of the reference period.

For unforeseen reasons and due to the specific situation of a very small statistical institute, the delays can be some days longer.

15.1. Comparability - geographical

The definitions applied are the same as fixed in Council Regulation 1503/2006 to assure European comparibility.

15.2. Comparability - over time

There are no breaks in series except for classification or structural reasons.

15.3. Coherence - cross domain

STS statistics are used for business cycle analysis as well as for the compilation of quarterly national accounts.Nevertheless, there is a lack of coherence: for practical reasons, this STS indicator is based on a panel survey and quarterly national accounts are produced above all with administrative data.

Due to the different concepts, short-term statistics are not completely coherent with other business statistics as SBS.

15.4. Coherence - internal

The unit in charge of STS tries to achieve a high level of coherence within the given data set (sub-aggregates / aggregates, unadjusted/adjusted time series, etc.). For example, it is possible that unadjusted time series growth month-to-month rates can be positibe while adjusted growth rates are negative, or vice-versa.

NSI: 335 hours/year

KAUs: 325 hours/year

17.1. Data revision - policy

In the field of STS, Statec has no official release or revision calendar. Data dissemination depends on the deadlines foreseen in the STS regulation. Revisions are made each time when newer, completed or corrected figures are available. The revised results are used for national releases as well as for the data transmission to the European Commission. Users are only informed about the reasons of non-scheduled revisions if the revisions are considered to be important.
Different versions of historical data are not stored, only the last available version is saved. Nevertheless, LU plans to introduce the storage of the different versions of released data, but this project is depending on the availability of resources.
The base year remains unchanged for five years as stated in the STS regulation. After changing the base year according to the STS regulation, LU publishes results according to the new base year = 100 which is indicated in the publications. STS statistics are confronted with quarterly national accounts and, if necessary, corrected.

17.2. Data revision - practice

In the field of STS, revisions are made each time when newer, completed or corrected figures for the different variables are available. There is no official revision calendar or regular process. The data and level of revisions depend on the data available. It is impossible to quantify the expected average size of revisions, for the same reason, users cannot be informed in advance of major revisions.

For several reasons, data can be updated after the first release of results: availability of corrected or completed data, correction of methodological or technical errors, confrontation with QNA data, etc.

Calculations (2022-2024) based on vintage figures transmitted by EUROSTAT to STATEC:

MR: 0.019
MAR: 1.713

18.1. Source data

Raw data are provided monthly by survey. It is transmitted to Statec by post, fax or e-mail. Results are based on a panel of +/- 150 KAU's.

In the case of the construction production index, there is no utilisation of administrative data.

18.2. Frequency of data collection

monthly survey on construction activity

18.3. Data collection

collection by EXCEL questionnaire, replies by e-mail.

18.4. Data validation

Data is checked before the electronic processing (completeness, logical errors, sums etc.). The data processing tool has some integrated tests helping to detect errors (e.g. average product prices deviating from the normal level). After the index calculation, the indices are visually checked: Statec uses graphs and outlier detection programs.

By using Stata, the results are restructured and the used codes are redifined in order to match with Eurostat's data transmission formats (CSV). Before the transmission to eurostat, the files are checked and validated in the GENEDI tool.

18.5. Data compilation

Missing informations are imputed according to a set of internal rules by using figures of comparable months for the same KAU or other KAUs in a comparable activity branch.

For the calculation of this index, Statec uses a Laspeyres quantity index (fixed weights: value added - base year 2010)

18.6. Adjustment

Construction production indices are calculated by multiplying the hours-worked (by KAU) by a specific coefficient (value added at factor costs divided by hours worked during the base year, by KAU) .

Calendar adjustment is carried out using the JDemetra interface. The rules applied are those fixed in the STS recommendations.

Annexes:
Metadata adjustment production in construction

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