Household Budget Survey 1997
Latvia, 1997
Identification
LVA_1997_HBS_v01_M
Household Budget Survey 1997
| Name | Country code |
|---|---|
| Latvia | LVA |
Income/Expenditure/Household Survey [hh/ies]
The first Household Budget Survey in Latvia took place in 1926-1927, the second in 1936-1937. In the post-war period Family Budget Survey was started in 1952 within the system of the former Central Statistical Board of the USSR. This survey continued also during first independence years of Latvia, after the Soviet Union collapsed. The new Household Budget Survey was introduced in September 1995. Since 1995, Latvia Household Budget Survey has been conducted annually. The annual household sample is evenly distributed over time (the same number of households participates in the survey within each of the 52 weeks of the year).
The Household Budget Survey provides information on qualitative and quantitative indicators of standards of livings in Latvia. The survey gathers data on the structure of households, their revenue and consumer expenditures, employment of the household members, living conditions, possession of consumer durables, access to health care, culture, education, as well as subjective assessments of the households' level of welfare. Data is collected through face-to-face interviews and household expenditure diaries.
Sample survey data [ssd]
Households
Version
1997
Scope
The survey comprises information on structure, revenue and consumer expenditures of households, employment of the members of households, conditions of the living area, access to consumer durables, information on visits to the institutions of health care, education etc., as well as viewpoints of households on their level of material welfare, etc.
Coverage
National
Producers and sponsors
| Name | Affiliation |
|---|---|
| Division of Living Condition and Household Budget Statistics, Social Statistics Department | Central Statistical Bureau of Latvia |
| Name | Role |
|---|---|
| World Bank | Technical and other assistance |
| University of Latvia | Sampling assistance |
| United Nations Development Program | Technical Assistance |
Sampling
The survey community of the HBS consists of all households in Latvia. Persons living in the institutional households (elderly people boarding house, disabled children boarding house, student hostels, barracks, hospitals, sanatoriums, penal institutions, etc.) are excluded from the current survey.
Sample Size and Sample Rotation
The 1997 sample was based on the 1996 sample. The total annual sample size of the HBS in 1996 was equal to approximately 7992 households (666 per month with a complete monthly renewal until December 1996). From there, half of the every month sample of the year 1996 was used as a panel in the sample of the corresponding month for the next 3 year period including 1997. The monthly sample size for 1996 was distributed across the major strata in the following way: 222 HHs in Riga; 116 in 6 other largest cities; 90 in middle-sized towns (over 7,000 inhabitants); 33 in small towns; 205 HHs in the rural areas.
A sample for HBS has been selected separately for the following domains;
- Riga and 6 large cities;
- Middle and small towns, and
- Rural areas.
The allocation of the sample (distribution of the sampling community) between towns and countryside as well as among 5 large regions of Latvia (Kurzeme, Zemgale, Vidzeme, Latgale and Riga region) is described in Table 1 of the Individual Data sets User Manual attached as External Resources.
Stratification
In the urban areas, the population register was used for the preparation of the sample. The 6 administrative districts of the capital Riga and each of the the 6 other largest towns of Latvia (Daugavpils, Jelgava, Jurmala, Liepaja, Rezekne, Ventspils) form separate 12 strata. Simple random sampling of persons (of age 15 years and more) is made within each stratum. The sample was allocated among strata proportionally to the population size.
All other towns of Latvia are distributed between 10 strata according to their size (more than 7000 inhabitants or less than or equal to 7000 inhabitants) and their location (5 geographical regions). Two stage stratified random sampling is used to obtain the sample. The PSU are towns of strata and the selection of PSU is made with probabilities proportional to the total number of inhabitants in the PSU. At the second stage simple random sampling of persons (of age 15 years and more) is made within each selected PSU.
Non-response and Replacement Procedure
In a multi-functional survey as a HBS, it is exceptionally significant to receive from the households included in the sampling lists as exhaustive responses to the questions included in the survey program as possible. In the case if households refuse to participate in the survey or respond to the questions of the survey, or they are not to be found at the address given, it may materially affect precision of acquired results. In order to curb the effects of refusal or other non-response factors and maintain the amount of acquired information, a sequential sampling approach is used. The non-respondent households are replaced by others from the reserve list. The latter being surveyed in place of the non-respondents. According to the survey procedure, households for replacement are taken in strict order. Considering that the reserve list has been made on a random selective basis, then the household replaced by the household from the reserve list has the same probability of being selected.
For this reason the supervisor of the rural field-work has two sampling lists at his disposal:
Basic list - this is the sampling list with household addresses to be surveyed during a month's time. This list is given to both supervisor and interviewer each month a new one.The total number of households on the list is 666.
Reserve list - this list is given to the supervisor only. The reserve list contains households in random order. This list is used by the decision of the supervisor only in cases when some of the households which are sampled do not participate in the survey. Upon necessity the supervisor assigns a household, keeping strictly to the sequence of the listed households. The reserve list is used until all households included are being surveyed. Afterwards the supervisor receives the next reserve list.
According to the regulations of the survey the term for replacement of the household is limited. The latest possible date is the 5th day of the survey month. In case the interviewer fails to replace a household from the basic list with one from the reserve list and start the interview, the household shall be excluded from the survey. The interviewer shall state reasons if any household included in the survey (from the basic list or reserve list) is not surveyed in the respective month, stating the reasons and filling in the "Report on Reasons of Non-Response". On the basis of these reports, analysis on non response is made.
It is necessary to remember that the sampling procedures are different in different territories, therefore the probability for an individual household to be included inthe survey should be calculated differently in different territories.
Survey instrument
Three types of questionnaires have been prepared for the survey:
- Household Questionnaire
- Household Diary
- Report on Non-Response
Using these survey documents it is planned to obtain the information during the whole period of the survey, which according to this model will last at least 4 years. The Household Interview Questionnaire is filled by the interviewer, but the Household Diary is filled by the household itself two times for half a month. This combination of interviewing and self registering is approved as acceptable for similar surveys in the developed countries.
In order to obtain the full amount of information envisaged by the survey program, the interviewer shall visit the household several times. The number of such visits is not limited to only these three:
- Preliminary interview
- Replacement of the first diary for the second
- Final interview
Actually the interviewer must visit the household in between the above mentioned visits, in order to ascertain on the manner the household fills in the diary, whether it needs any assistance and additional explanations. It is rather often that reports are not made on a sufficiently regular basis, and additional inquiry on purchases made in between the visits, should be made by ourselves in the diary. Such assistance fairly often is necessary to the older people, as well as those with poor eye-sight and other restrictions as to their activities.
Data collection
| Start |
|---|
| 1997 |
| Name |
|---|
| Central Statistical Bureau of Latvia |
Duties of the supervisor were as follows: The supervisor performs work with organizations, carries responsibility for the quality of acquired data through the survey, supervises work of interviewers and entry of data. Depending on the amount of work , the supervisor could also perform data entry operator duties.. More details are available in Section 4.2 of the Individual Data sets User Manual attached as External Resources.
Data processing
Data entry and primary data control is performed at the supervisor's office which is located in the administrative region of the state statistical office. For this purpose each supervisor has a PC with a printer. This equipment provides all data entry procedures and print-outs of all errors and logical misappropriations discovered during the data entry. The operator will perform entry in the supervision areas with a larger number of interviewers (at least 5), where as the supervisor himself will perform the said function in the areas with smaller number of interviewers.The only exception is Riga, where data entry is organized with the help of professional data entry operators. Data are entered and examined at the location in 15 areas with the DOS program system 'ARIEL-DE'.
Control (discovery) and correction of the mistakes in HBS questionnaires and huoseholds' diaries is dome with the data entry program. The following operations takes place during the data entry:
- Entry of the data indicators;
- Double launching of the control program, which ensures the control of the correctness of the data entered. The control program looks for 'true' mistakes as well as for 'possible' mistakes in the questionnaires.
When the data completeness and correctness control program was developed, a set of events was placed into a memory of computer (those included instructions relating to the coding of data and a list of codes). Data that did not correspond to these conditions was regarded as a 'real' or 'true' mistake. Each mistake or mismatch of the logical type that was found was shown in form of a warning on the screen and simultaneously printed. Thus the supervisor had a way to monitor how the warnings were attended to or ignored by the data entry operator.
In the ASCII file each household has its own file which contained information on all documents of the survey (household interview, household diary or report on non-response). After completion of data entry and correction of discovered mistakes, the set of data were copied to diskettes and on the respective date of the month, then sent over electronic cable, using special communication channels of the Post of Latvia to the file server of the unit of the survey data processing. Household data files from regions were combined monthly in the "theme" ASCII - in files with the utility program from the "ARIEL-DE" system and package of statistic program "SPSS for Windows 6.1.3".
Data appraisal
Estimation procedures are detailed in Section 3.5 of the Individual Data sets User Manual attached as External Resources.
Data Access
Use of the dataset must be acknowledged using a citation which would include:
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
Disclaimer and copyrights
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Social Statistics Department | Central Statisticsl Bureau of Latvia | info@csb.gov.lv | http://www.csb.gov.lv/ |
| Microdata Library | World Bank | microdatalib@worldbank.org |
Metadata production
DDI_LVA_1997_HBS_v01_M_WB
| Name | Affiliation | Role |
|---|---|---|
| Development Economics Data Group | The World Bank | Documentation of the DDI |
2013-10-09
Metadata version
Version 01 (October 2013)