Owner occupied housing price index (prc_hpi_oo)

National Reference Metadata in Euro SDMX Metadata Structure (ESMS)

Compiling agency: National Institute of Statistics (INS), Romania


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)



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1. Contact Top
1.1. Contact organisation

National Institute of Statistics (INS), Romania

1.2. Contact organisation unit

Price Statistics Department

1.5. Contact mail address

16 Libertatii Bvd. Bucharest 5, 050706, Romania


2. Metadata update Top
2.1. Metadata last update 30/01/2024
2.2. Metadata last certified 30/01/2024
2.3. Metadata last posted 30/01/2024


3. Statistical presentation Top
3.1. Data description

The OOHPI is based on the ‘net acquisitions’ approach, which measures changes in prices paid by households for the acquisition of dwellings that are new to the household sector and changes in other costs related to the ownership, and transfer of ownership, of dwellings.

3.2. Classification system

The OOHPI is broken down into the following expenditure categories:

  • O.1. Owner-occupiers’ housing expenditure;
    • O.1.1. Acquisitions of dwellings;
      • O.1.1.1. New dwellings;
        • O.1.1.1.1. Purchases of newly built dwellings;
        • O.1.1.1.2. Self-build dwellings and major renovations;
      • O.1.1.2. Existing dwellings new to households;
      • O.1.1.3. Other services related to the acquisition of dwellings;
    • O.1.2. Ownership of dwellings;
      • O.1.2.1. Major repairs and maintenance;
      • O.1.2.2. Insurance connected with dwellings;
      • O.1.2.3. Other services related to ownership of dwellings.
3.3. Coverage - sector

Households which are owner occupiers.

3.4. Statistical concepts and definitions

The main statistical variables are price indices.

3.5. Statistical unit

The basic unit of statistical observation are transaction prices of dwellings new to the household sector and of other products that the households acquire in their role as owner-occupiers.

3.6. Statistical population

The target population is set of all transactions of dwellings new to households sector and also, other owner-occupiers’ housing expenditure are covered (e.g. costs related to the transfer of ownership, costs related to the ownership.

3.7. Reference area

Entire area of the country is covered.

3.8. Coverage - Time

Data available starting with the index of the first quarter of 2010 for the entire system of indices as described above (point 3.2 Classification system).

3.9. Base period

2015=100


4. Unit of measure Top

The following units are used:


- Index point;
- Percentage change on the same period of the previous year (rates);
- Percentage change on the previous period (rates);
- Percentage share of the total (weights).


5. Reference Period Top

OOHPI is a quarterly statistics.


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

Regulation (EU) 2016/792 of the European Parliament and of the Council of 11 May 2016 on harmonised indices of consumer prices and the house price index.

Commission Implementing Regulation (EU) 2023/1470 of 17 July 2023 laying down the methodological and technical specifications in accordance with Regulation (EU) 2016/792 of the European Parliament and of the Council as regards the house price index and the owner-occupied housing price index, and amending Commission Regulation (EU) 2020/1148

There are no national legal acts related to OOH.

6.2. Institutional Mandate - data sharing

In 2008, a cooperation protocol was signed between the NIS, the Union of Public Notaries from Romania and the National Bank of Romania in order to carry out statistical research on real estate prices. This protocol aims to regulate the common base of activities between the 3 institutions, in order to carry out statistical research and build real estate indices by the NIS the Union of Public Notaries from Romania and the National Bank of Romania have access to price indices obtained by data processing, as well as to other statistics developed by NIS by processing data collected based on the signed protocol.


7. Confidentiality Top
7.1. Confidentiality - policy

Data is published to the level of detail described above (point 3.2. Classification system).

7.2. Confidentiality - data treatment

Not applicable.


8. Release policy Top
8.1. Release calendar

OOHPI is not published nationally.

8.2. Release calendar access

The quarterly OOHPI data are published on the Eurostat Website at the same time as house price statistics (see Eurostat release calendar).

8.3. Release policy - user access

OOHPI quarterly data are disseminated on the Eurostat website.


9. Frequency of dissemination Top

Quarterly (OOHPI) and annually (weights)


10. Accessibility and clarity Top
10.1. Dissemination format - News release

Not applicable.

10.2. Dissemination format - Publications

Not applicable

10.3. Dissemination format - online database

Not applicable.

10.4. Dissemination format - microdata access

Not disseminated.

10.5. Dissemination format - other

The data based 2015=100 is provided by the INS-Romania and published on Eurostat on-line database.

10.6. Documentation on methodology

OOHPI is based on methodological guidelines provided in "Technical manual on Owner-Occupied Housing and House Price Indices".

10.7. Quality management - documentation

Not available.


11. Quality management Top
11.1. Quality assurance

All data are checked for completeness and consistency with statistical concepts and definitions.

OOHPI are produced in compliance with OOHPI methodological requirements of the Owner-Occupied Technical Manual.

11.2. Quality management - assessment

The quality of the OOHPI is reviewed using a framework based on the OOH Technical Manual and the European Statistical System (ESS) definition of quality.


12. Relevance Top
12.1. Relevance - User Needs

The OOHPI responds, on the one hand, to the needs of all individual users interested in the behavior of the domestic house price market and, on the other, to the needs of the European Central Bank and Commission for a set of indicators monitoring the stability of the house price market.

12.2. Relevance - User Satisfaction

Not available.

12.3. Completeness

The OOHPI meets the specifications set out in the Regulation.


13. Accuracy Top
13.1. Accuracy - overall

The accuracy of the OOHPI is assured by following Eurostat's methodological recommendation.

13.2. Sampling error

Not available.

13.3. Non-sampling error

Not available.


14. Timeliness and punctuality Top
14.1. Timeliness

OOHPI is not disseminated nationally.

14.2. Punctuality

The OOHPI is normally transmitted before the deadline.


15. Coherence and comparability Top
15.1. Comparability - geographical

Not applicable.

15.2. Comparability - over time

Data are comparable over time, first index is the 2010 first quarter index.

15.3. Coherence - cross domain

OOHPI covers the transactions of dwellings, having a private household as buyer and non-household as seller.

Transaction prices are used for computing the indices.

The structure is described on point 3.2. Classification system.

Any comparisons with other indices shall have these in mind.

15.4. Coherence - internal

Data are checked for internal consistency.


16. Cost and Burden Top

Not applicable.


17. Data revision Top
17.1. Data revision - policy

Not available.

17.2. Data revision - practice

The general public is informed on the revisions through the statistical publications.


18. Statistical processing Top
18.1. Source data

See below.

18.1.1. Prices

The OOHPI are based on the following data sources:

- Purchase of new dwellings: Index figures are compiled on the basis of transaction prices and characteristics on dwellings collected through the Public Notaries Offices, all the transactions of dwellings are registered and authorized by public notaries;

- Self-build dwellings and major renovations: Statistical domains ( construction statistics);

- Other services related to the acquisition of dwellings: Index figures are compiled on the basis of transaction prices and characteristics on dwellings collected through the Public Notaries Offices, all the transactions of dwellings are registered and authorized by public notaries; 

- Insurance connected with dwellings: statistical domain (CPI data).

- Major repaires and maintenance: Statistical domains (construction statistics)

18.1.2. Weights

Statistical domains (construction statistics, CPI) and other sources are used for the compilation of the weights.

18.2. Frequency of data collection

Data are collected monthly.

18.3. Data collection

Data are collected through an electronic format. The electronic data are transmitted by e-mail, the files resulted through the developed application are transmitted to a dedicated address.

Electronic data are transmitted based on a Protocol established between three institutions: National Bank of Romania, National Union of the Notaries Public from Romania, National Institute of Statistics.

18.4. Data validation

Data are checked for internal consistency. Data are validated considering several variables, correlations between variables meant to identify possible errors which disturb the quality of the statistical results.

The collected data were cleaned taking into account the results on the analyze of the market value of transaction price range, the quality of input data on total useful area on the flats, the information on the useful area according to the legislation, the expert guidance on the appraisals indicative values of real estate.

 

18.5. Data compilation

See below.

18.5.1. Calculation and Aggregation

See below.

18.5.1.1. Index formulae

The Romanian OOHPI is calculated on a quarterly basis as a chained Laspeyres-type index, with annual weights.

18.5.1.2. Aggregation method

Weighted aggregation of the OOH component indices.

18.5.1.3. Derivation of sub-index and elementary aggregate weights

The weights reference period is year t-1, and these weights are price updated to the last quarter of year t-1.

18.5.1.4. Price updating

The weights reference period is year t-1, and these weights are price updated to the last quarter of year t-1.

18.5.1.5. Chaining and linking method

Indexes are chained annually with the fourth quarter of the previous year as the link period.

18.5.2. Other processing issues - OOH sub-indices for purchases of newly built dwellings and existing dwellings new to households

See below.

18.5.2.1. Timing for pricing

Transfer of ownership.

18.5.2.2. Treatment of VAT

VAT is not included in the price of newly built dwellings.

18.5.2.3. Treatment of other taxes

Other taxes are not included in the price of dwellings.

18.5.2.4. Treatment of government subsidies

Not applicable.

18.5.2.5. Treatment of land

Land values are included in prices.

18.5.2.6. Housing cooperatives

Housing cooperatives are not included.

18.5.2.7. Treatment of non-market transactions

The possible 'non-market' transactions are excluded from the calculation of the index.

18.5.2.8. Treatment of multi-object transactions

The transactions including more than one dwelling, if there is no possibility to split the value for each dwelling, are excluded. The exchange of dwellings transactions are excluded as well.

18.5.2.9. Treatment of fractional transactions

The fractional transactions are excluded.

18.5.3. Other processing issues - OOH sub-indices other than OOH sub-indices for purchases of newly built dwellings and existing dwellings new to households

See below.

18.5.3.1. Elementary aggregate formulae

Computation method:
- lowest level indices: hedonic method (rolling time dummy window method) - O.1.1.1.1. Purchases of newly built dwellings and O.1.1.3. and Other services related to the acquisition of dwellings;

- Indices for: O.1.1.1.2. Self-build dwellings and major renovations; O.1.2.1. Major repairs and maintenance; O.1.2.2. Insurance connected with dwellings are obtained from other statistical  surveys (construction statistics, CPI);

- upper level indices: Laspeyres price index.

18.5.3.2. Replacements

Not applicable.

18.5.3.3. Quality adjustment

The hedonic method (rolling time dummy window method) is used to adjust for the quality-mix of properties transacted in different periods.

18.5.3.4. Missing prices

Not applicable.

18.5.3.5. Discounts and inducements

Not applicable.

18.5.3.6. Zero prices

Not applicable.

18.5.3.7. Treatment of VAT

No.

18.6. Adjustment

Not applicable.


19. Comment Top

None.

 


Related metadata Top


Annexes Top