Household Budget Survey 2006 - Moldova

Abstract
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Moldova Household Budget Survey (HBS) 2006 was implemented by the National Bureau of Statistics of the Republic of Moldova (formerly the Department for Statistics and Sociology of the Republic of Moldova).

Household Budget Survey is a nationally representative survey that provides information on living standards in Moldova through collection of households' income and consumption data, as well as non-monetary indicators covering education, health, employment, housing, asset ownership, and self-assessed living conditions. Information obtained from the survey is also used to calculate the weights for the Consumption Price Index, and the households' final consumption. The HBS has been conducted quarterly starting in the second quarter of 1997.

In 2006, Moldova HBS was substantially modified in two main areas: the way in which households were selected (sampling frame and sampling area), and the data collection tools (questionnaires). Since 1997, the HBS sample had been extracted from the same areas causing exhaustion of households. Moldova Census 2004 provided updated and detailed information on the population to construct a new sampling frame. Census information was used to ensure a larger geographical coverage, thus improving the quality of indicators obtained at country and regional levels. The household diary design was changed to improve the way the survey covers various income sources and types of expenditure.

Data is collected through face-to-face interviews and the households' income and expenditure diary.

Geographic coverage
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National

Analysis unit
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- Households,
- Individuals.

Universe
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Population of the Household Budget Survey consists of all individual Moldovan households. Institutional households, such as hospitals, students' hostels, prisons, or senior citizens' houses, were not included in the survey. However, workers' hostels were included in the study.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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Sampling methodology for Moldova HBS was re-designed in 2006.

The updated HBS sample was selected using information from the Population Census 2004 and a joint database of electricity consumers in the whole country. 129 Primary Sampling Units (PSU) are now covered by HBS (before 2006, 45 PSUs were surveyed).

A larger number of PSUs improves regional estimates and ensures a representative sample not only for cities, towns and rural areas as did the previous survey, but also at the level of four statistical zones (North, Centre, South, and Chisinau). Moreover, both Chisinau and Balti municipialities are treated as a large primary sampling unit, from where households are selected, whereas before only some districts were included in the sample.

Two-stage probability sample is used to select households.

1) Sampling procedure: 1st stage - sampling with probabilities proportional to size (PPS) in each strata; 2nd stage - simple random sample (SRS) of households in each PSU.

2) Rotation scheme: 1st stage - starting with 2008 about 20% of PSUs will be annually replaced; 2nd stage - one half of households will participate in the survey during five consecutive years and the rest of households will be replaced with the new ones.

Updated HBS sampling design does not use substitution in case of non-response.

Mode of data collection
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Face-to-face [f2f]

摘要
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摩尔多瓦家庭预算调查（HBS）2006年由摩尔多瓦共和国国家统计局（原摩尔多瓦共和国统计局和社会学部）实施。
家庭预算调查是一项具有全国代表性的调查，通过收集家庭收入和消费数据，以及涵盖教育、健康、就业、住房、资产所有权和自我评估生活条件的非货币指标，为摩尔多瓦的生活水平提供信息。调查获得的信息还用于计算消费价格指数的权重以及家庭的最终消费。自1997年第二季度开始，HBS已每季度进行一次。
2006年，摩尔多瓦HBS在两个主要方面进行了重大修改：家庭的选择方式（抽样框架和抽样区域）以及数据收集工具（问卷）。自1997年以来，HBS样本一直从同一地区提取，导致家庭样本耗尽。摩尔多瓦2004年人口普查提供了更新和详细的人口信息，用于构建新的抽样框架。人口普查信息被用于确保更广泛的地理覆盖范围，从而提高国家和区域层面获得的指标质量。家庭日记设计得到了改变，以改善调查覆盖各种收入来源和支出类型的方式。
数据通过面对面访谈和家庭收入和支出日记收集。
地理覆盖范围
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全国
分析单元
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- 家庭
- 个人。
总体
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家庭预算调查的总体包括所有摩尔多瓦个人家庭。不包括机构家庭，如医院、学生宿舍、监狱或老年人住所。然而，工人宿舍被纳入研究。
数据类型
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样本调查数据 [ssd]
抽样程序
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摩尔多瓦HBS的抽样方法在2006年进行了重新设计。
更新的HBS样本使用2004年人口普查信息和全国电力消费者联合数据库中的信息进行选择。现在，HBS覆盖了129个基本抽样单位（PSU）（在2006年之前，调查了45个PSU）。
更多的PSU提高了区域估计的准确性，并确保了不仅对城市、镇和农村地区，而且对四个统计区域（北部、中部、南部和基希讷乌）都具有代表性的样本，正如先前调查所做的那样。此外，基希讷乌和Balti市政当局被视为一个大型的基本抽样单位，从中选择家庭，而在此之前，只有一些区被包括在样本中。
采用两阶段概率样本来选择家庭。
1) 抽样程序：第一阶段 - 在每个层中进行与规模比例成比例的抽样（PPS）；第二阶段 - 在每个PSU中进行简单随机抽样（SRS）。
2) 旋转方案：第一阶段 - 从2008年开始，大约20%的PSU将每年更换；第二阶段 - 一半的家庭将在五年内连续参与调查，其余家庭将被新的家庭所取代。
更新的HBS抽样设计在非响应的情况下不使用替代。
数据收集方式
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面对面 [f2f]