Purchasing power of household


INCOME, EXPENDITURE AND CONSUMPTION OF HOUSEHOLDS - Purchasing power
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Statistics on Living Conditions Department

Contact name

Irina Tosheva

Contact person function

Chief Expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 612

Contact fax number
Metadata update
Metadata last certified06 July 2020
Metadata last posted06 July 2020
Metadata last update06 July 2020
Statistical presentation
Data description

The variable Purchasing power of the households is estimated based on the information from HBS. The purchasing power is the quantity of a given kind of good, which can be bought with the annual monetary or total income of the household if it is used to buy only this kind of good. Data are represented as absolute values.

Classification system

· Classification of Individual Consumption by Purpose (COICOP);

· Classification on household income;

· International Standart Classification of Education, 1997 version (ISCED 2011);

· National Classification of Occupations and Duties-2011 (NCOD-2011);

· Classification of Economic Activities (CEA-2008, for international use NACE.BG-2008).

Sector coverage

The Household Budget Survey is a sample survey by implementation of two stage cluster. The general population from which the sample for the survey is formed comprises all the households in the country. Institutional households are not studied by the household budget survey. The unit of observation is every randomly chosen ordinary household irrespective of the number of members and their material and personal status. The sample size for the 2002 - 2009 period is 3000 households and since 2010 - 3060 households each quarter.

Statistical concepts and definitions

The variable Purchasing power of the households is estimated based on the information from HBS. The Purchased power represents the volume of a given kind of goods, that could be bought with the annual monetary or total income of the household, in case only used to buy this kind of good. The data are presented as absolute values.

The variable Index of Purchasing Power represents the changes of the purchasing power in relation to a base year.

The variable Index of Purchasing Power represents the changes of the purchasing power in relation to a base year.

Statistical unit

Households 

Statistical population

The purposive aggregate in the HBS are all ordinary households and their members reside in the territory of the country at the moment of the survey. Persons who live in institutional households are excluded from the aggregate.

Reference area

For the territory of the Republic of Bulgaria.

Time coverage

2004 - 2018 yearly data

Base period

Not applicable

Unit of measure

BGN, kg; ton, litre; number; cubic metre; pair, metre, kWh.

Reference period

Year

Institutional mandate
Legal acts and other agreements

Gentlemen agreement with Eurostat.

Data sharing

Not applicable.

Confidentiality
Confidentiality - policy
  • Law on Statistics;
  • Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.
Confidentiality - data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

Release policy
Release calendar

In April of the year following the reference year.

Release calendar access

The calendar is available on the NSI website: http://www.nsi.bg/en/node/480

User access

Data is published on the NSI website, section Households Income, Expenditure and Consumption in accordance with the Law on Statistics and the European Statistics Code of Practice respecting the professional independence and aimed at objectivity, transparency and equal treatment of all consumers.

Frequency of dissemination

Yearly

Accessibility and clarity
News release

News release for publication „Average prices and purchased quantities of main foods and non-foods by households“.

Publications

Publication „Average prices and purchased quantities of main foods and non-foods by households“. The publication contains data on the average prices and purchased quantities foods and non-foods by households by years and by quarters. The information from the survey of household budgets is used and because of that these average prices differ from the consumer prices published by the NSI. The purchased quantities foods are computed average per household and the purchased non-foods - average per 100 households. Published are also data on the purchasing power of households calculated by means of total and monetary income, as well as the changes in the purchasing power.

Statistical Reference Book - contains data on purchasing power of households

Statistical Yearbook - contains data on purchasing power of households

On-line database

Detailed results on Purchasing power are available to all users of the NSI website under the heading Households Income, Expenditure and Consumption - Purchasing power of household: http://www.nsi.bg/en/node/5724 and in the INFOSTAT Information system: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=144.

Micro-data access

Not applicable.

Other

Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

Documentation on methodology

Methodological notes about calculation of the average prices and purchased quantities goods by the households

Quality documentation

Not applicable.

Quality management
Quality assurance

Through checking on field work and control of the thoroughness of the records in the diaries.

Quality assessment

Not applicable.

Relevance
User needs

The data of the average prices and purchased quantities goods is of interest to a wide number of users - state authorities, public and international organizations (Eurostat, OUN, ILO, etc), students and others.

User satisfaction

No user' satisfaction surveys are carried out.

Completeness

Not applicable.

Accuracy and reliability
Overall accuracy

As with any other sample survey, HBS may be burdened with errors due to sampling and other relating to the inability to be interviewed some of the units in the sample, as well as the errors taking place at the stage of data recording, data processing, etc. 

Sampling error

The data are burdened with a certain stochastic error due to the sample character of the survey.

Non-sampling error

Like any statistical survey and and household budget survey may contain non-sampling errors that arise at different stages of the study and which cannot be completely eliminated. 

Such errors are basically:

  • Coverage errors;
  • Measurement errors that occur at the time of the data collection;
  • processing errors;
  • non-response errors.

 

In order to reduce non-sampling errors:

  • Update of the household lists for each of the first stage selection census enumeration areas;
  • Development of a clear research methodology, ongoing updating of data coding systems;
  • Using interviewers with experience in collecting, controlling, encoding and inputting data;
  • Conducting regular training seminars for the interviewers;
  • Assistance to the interviewers of the survey team at NSI;
  • Data control at the collection, input and processing stage.
Timeliness and punctuality
Timeliness

Annual data are published in April of the year following the reference year.

 

Punctuality

The deadlines are observed: for yearly data - four months after the accounting year. 

Coherence and comparability
Comparability - geographical

Not applicable.

Comparability - over time

Long time series.

Coherence - cross domain

Household expenditure survey is in accordance with the following surveys: Consumer Price Indices, National Accounts, Purchasing Power Parity.

Coherence - internal
Cost and burden

Every household receive 20 BGN per month of participation. It takes part in the survey 4 months per year, average 2-3 hour per month.

Data revision
Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Statistical processing
Source data

The general population from which the sample for the survey is formed comprises all the ordinary households in the country.

When forming the sample a two stage cluster’s sampling on a territorial principle is implemented as follows:

  • at the first stage the clusters are selected (enumeration areas from the last Census);
  • at the second stage the households to be surveyed are identified.

Up to 2009 the selection of territorial units is done with a probability proportional to their size. Since 2010 non-proportional selection has applied in order to produce more accurate sample data in the small regions where the minimum quarter size of the sample include no less 72 households at the expense of decrease of the number of households in the large regions - Sofia (stolitsa), Plovdiv and Varna.

In the selected enumeration areas (clusters) lists of the household are prepared and they are arranged into ascending order, depending on the number of persons. This indicator has a close correlation with the surveyed indicators - income, expenditure, and consumption per capita. 6 households from these lists are chosen from each cluster with a selection step.

Since 2010 the sample size has been 3 060 households divided in three sub-samples each containing 1 020 households. Each sub-sample is surveyed one month per quarter by application of the method of rotation sample. Each household participates in the survey four months during the 12-month period.

The household budget survey applies the principle of the voluntary participation of households which had randomly come into the sample. Every randomly selected household which is not willing or is not able to cooperate is replaced with another from the same cluster and with the same number of members.

Main documents of the Household Budget Survey are:

  • Household dairy;
  • Three questionnaires.
Frequency of data collection

Monthly to 2009 and quarterly since 2010.

Data collection

Derivative indicators are calculated on the bases of primary data from HBS.

Data validation

Logical control of data is happened at the time when the information is introduced.

Data compilation

The data are calculated by means of specialized software on a PC.

Adjustment

Not applicable.

Comment
Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml
  • Purchasing power of household
  • Thursday, 14 May 2020 - 11:00

    The total income average per household member during the first quarter of 2020 is 1 712 BGN and increases by 12.7% compared to the same quarter of 2019.

    The total expenditure average per household member during the first quarter of 2020 is 1 486 BGN and increases by 5.9% in comparison to the same quarter of 2019.

    The consumption of main food products average per household member does not change considerable during the first quarter of 2020 compared to the same quarter of 2019.

  • Tuesday, 14 April 2020 - 11:00

    The annual total income average per capita is 6 592 BGN in 2019 and increases by 9.6% compared to 2018.

    The Bulgarian households are spend 6 214 BGN average per capita in 2019 or by 7.7% more compared to 2018.

    Statistical data show changes in the household consumption structure in Bulgaria in 2019 compared to 2018.

  • Monday, 17 February 2020 - 11:00

    The total income average per household member during the fourth quarter of 2019 is 1 770 BGN and increases by 13.7% compared to the same quarter of 2018.

    The total expenditure average per household member during the fourth quarter of 2019 is 1 670 BGN and increases by 10.7% in comparison to the same quarter of 2018.

    The consumption of main food products average per household member during the fourth quarter of 2019 is without considerable change compared to the same quarter of 2018.

  • Friday, 15 November 2019 - 11:00

    The total income average per household member during the third quarter of 2019 is 1 716 BGN and increases by 11.3% compared to the same quarter of 2018.

    The total expenditure average per household member during the third quarter of 2019 is 1 583 BGN and increases by 4.3% in comparison to the same quarter of 2018.

    The consumption of main food products average per household member change during the third quarter of 2019 compared to the same quarter of 2018.

  • Thursday, 15 August 2019 - 11:00

    The total income average per household member during the second quarter of 2019 is 1 547 BGN and increases by 4.9% compared to the same quarter of 2018.

    The total expenditure average per household member during the second quarter of 2019 is 1 402 BGN and increases by 5.3% in comparison to the same quarter of 2018.

    The consumption of main food products average per household member during the second quarter of 2019 compared to the same quarter of 2018 does change.

  • Thursday, 16 May 2019 - 11:00

    The total income average per household member during the first quarter of 2019 is 1 519 BGN and increases by 8.0% compared to the same quarter of 2018.

    The total expenditure average per household member during the first quarter of 2019 is 1 403 BGN and increases by 11.0% in comparison to the same quarter of 2018.

    The consumption of main food products average per household member does not change considerable during the first quarter of 2019 compared to the same quarter of 2018.

  • Tuesday, 16 April 2019 - 11:00

    The annual total income average per capita is 6 013 BGN in 2018 and increases by 7.6% compared to 2017.

    The Bulgarian households are spent 5 772 BGN average per capita in 2018 or by 10.6% more compared to 2017.

    Statistical data show changes in the household consumption structure in Bulgaria.

  • Thursday, 14 February 2019 - 11:00

    The total income average per household member during the fourth quarter of 2018 is 1 557 BGN and increases by 7.5% compared to the same quarter of 2017.

    The total expenditure average per household member during the fourth quarter of 2018 is 1 509 BGN and increases by 10.3% in comparison to the same quarter of 2017.

    The consumption of main food products average per household member is without considerable change during the fourth quarter of 2018 compared to the same quarter of 2017.

  • Thursday, 15 November 2018 - 11:00

    The total income average per household member during the third quarter of 2018 is 1 541 BGN and increases by 7.7% compared to the same quarter of 2017.

    The total expenditure average per household member during the third quarter of 2018 is 1 518 BGN and increases by 9.8% in comparison with the same quarter of 2017.

    The consumption of main food products average per household member is without considerable change during the third quarter of 2018 compared to the same quarter of 2017.

  • Wednesday, 15 August 2018 - 11:00

    The total income average per household member during the second quarter of 2018 is 1 474 BGN and increases by 8.7% compared to the same quarter of 2017.

    The total expenditure average per household member during the second quarter of 2018 is 1 331 BGN and increases by 11.4% in comparison to the same quarter of 2017.

    The consumption of main food products average per household member during the second quarter of 2018 compared to the same quarter of 2017 does change.

Pages

  • Statistical Yearbook 2019
    The National Statistical Institute (NSI) has the pleasure to present to the attention of national and foreign users of statistical information the 87th edition of the ‘Statistical Yearbook of the Republic of Bulgaria’ in printed and electronic format.

    It provides current statistical information about the demographic, economic and social development of the country for 2013 - 2018 in different territorial and classification aggregations and breakdowns.

  • Household Budgets in the Republic of Bulgaria 2018
    The National Statistical Institute presents to users of statistical information the bilingual (Bulgarian/English) publication Household budgets in the Republic of Bulgaria 2018.
  • Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2007 - 2018 period
    The National Statistical Institute presents to users of statistical information the electronic bilingual (Bulgarian/English) publication Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2007 - 2018 Period.
  • Statistical Yearbook 2018 in infographics
    The National Statistical Institute presents to your attention the 86th edition of the Statistical Yearbook of the Republic of Bulgaria in infographics.

    In 2018, for the first time, we presented the results of the statistical surveys through graphics, images and other visualization tools, which resulted in a positive response among a wide range of users. We believe that this modern way of presenting statistical information will trigger the interest in those who for the first time encounter the meaning of numbers revealing important aspects of socio-economic life.

  • Statistical Yearbook 2018
    The National Statistical Institute (NSI) has the pleasure to present to the attention of national and foreign users of statistical information the 86th edition of the ‘Statistical Yearbook of the Republic of Bulgaria’ in printed and electronic format.

    It provides current statistical information about the demographic, economic and social development of the country for 2012 - 2017 in different territorial and classification aggregations and breakdowns.

  • Household Budgets in the Republic of Bulgaria 2017
    The National Statistical Institute presents to users of statistical information the bilingual (Bulgarian/English) publication Household budgets in the Republic of Bulgaria 2017.
  • Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2006 - 2017 period
    The National Statistical Institute presents to users of statistical information the electronic bilingual (Bulgarian/English) publication Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2006 - 2017 Period.
  • Statistical Yearbook 2017 in infographics
    The National Statistical Institute of Bulgaria offers a different view of the statistical information included in the 85th edition of the Statistical Yearbook of the Republic of Bulgaria.

    The publication is intended for a wider audience as statistical data are presented in a plain and easy understandable way.

    The current state and changes in the socio-economic and cultural life in the country are presented not in the traditional way in tables and text, but through infographics - images, graphics and other visualization tools.

  • Statistical Yearbook 2017
    The National Statistical Institute (NSI) has the pleasure to present to the attention of national and foreign users of statistical information the 84th edition of the ‘Statistical Yearbook of the Republic of Bulgaria’ in printed and electronic format.

    It provides current statistical information about the demographic, economic and social development of the country for 2012 - 2016 in different territorial and classification aggregations and breakdowns.

  • Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2005 - 2016 period
    The National Statistical Institute presents to users of statistical information the electronic bilingual (Bulgarian/English) publication Average Prices and Purchased Quantities of Main Foods and Non-Foods by Households for the 2005 - 2016 Period.

Pages