Integrated Survey of Living Standards 2001 - Armenia

Abstract
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The Integrated Survey of Living Standards (ISLS), renamed in 2004 to Integrated Survey of Living Conditions Survey (ILCS) is conducted annually by the NSS National Statistical Service of the Republic of Armenia, formed the basis for monitoring living conditions in Armenia. The ILCS is a universally recognized best-practice survey for collecting data to inform about the living standards of households. The ILCS comprises comprehensive and valuable data on the welfare of households and separate individuals which gives the NSS an opportunity to provide the public with up to date information on the population’s income, expenditures, the level of poverty and the other changes in living standards on an annual basis.

Geographic coverage
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Urban and rural communities

Analysis unit
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- Households;
- Individuals.

Kind of data
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Sample survey data [ssd]

Sampling procedure
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During the 2001-2003 surveys two-stage random sample was used; the first stage covered the selection of settlements - cities and villages, while the second stage was focused on the selection of households in these settlements. The surveys were conducted on the principle of monthly rotation of households by clusters (sample units). In 2002 and 2003 the number of households was 387 with the sample covering 14 cities and 30 villages in 2002 and 17 cities and 20 villages in 2003.

During the 2004-2006 surveys the sampling frame for the ILCS was built using the database of addresses for the 2001 Population Census; the database was developed with the World Bank technical assistance. The database of addresses of all households in Armenia was divided into 48 strata including 12 communities of Yerevan city. The households from other regions (marzes) were grouped according to the following three categories: big towns with 15,000 and more population; villages, and other towns. Big towns formed 16 strata (the only exception was the Vayots Dzor marz where there are no big towns). The villages and other towns formed 10 strata each. According to this division, a random, two-step sample stratified at marz level was developed. All marzes, as well as all urban and rural settlements were included in the sample population according to the share of population residing in those settlements as percent to the total population in the country.
In the first step, the settlements, i.e. primary sample units, were selected: 43 towns out of 48 or 90 percent of all towns in Armenia were surveyed during the year; also 216 villages out of 951 or 23 percent of all villages in the country were covered by the survey. In the second step, the respondent households were selected: 6,816 households (5,088 from urban and 1,728 from rural settlements). As a result, for the first time since 1996 survey data were representative at the marz level.

During the 2007-2012 surveys the sampling frame for ILCS was designed according to the database of addresses for the 2001 Population Census, which was developed with the World Bank technical assistance. The sample consisted of two parts: core sample and oversample.

1) For the creation of core sample, the sample frame (database of addresses of all households in Armenia) was divided into 48 strata including 12 communities of Yerevan city. The households from other regions (marzes) were grouped according to three categories: large towns (with population of 15000 and higher), villages and other towns. Large towns formed by 16 groups (strata), while the villages and towns formed by 10 strata each. According to that division, a random, two-step sample stratified at the marz level was developed. All marzes, as well as all urban and rural settlements were included in the sample population according to the share of households residing in those settlements as percent to the total households in the country. In the first step, using the PPS method the enumeration units (i.e., primary sample units to be surveyed during the year) were selected. 2007 sample includes 48 urban and 18 rural enumeration areas per month.
2) The oversample was drawn from the list of villages included in MCA-Armenia Rural Roads Rehabilitation Project. The enumeration areas of villages that were already in the core sample were excluded from that list. From the remaining enumeration areas 18 enumeration areas were selected per month. Thus, the rural sample size was doubled.
3) After merging the core sample and oversample, the survey households were selected in the second step. 656 households were surveyed per month, from which 368 from urban and 288 from rural settlements. Each month 82 interviewers had conducted field work, and their workload included 8 households per month. In 2007 number of surveyed households was 7,872 (4,416 from urban and 3,456 from rural areas).

For the survey 2013 the sample frame for ILCS was designed in accordance with the database of addresses of all private households in the country developed on basis of the 2001 Population Census results, with the technical assistance of the World Bank. The method of systematic representative probability sampling was used to frame the sample. For the purpose of drawing the sample, the sample frame was divided into 32 strata including 12 communities of Yerevan City (currently, the administrative districts).
According to this division, a two-tier sample was drawn stratified by regions and by Yerevan. All regions and Yerevan, as well as all urban and rural communities were included in the sample in accordance to the shares of their resident households within the total number of households in the country. In the first round, enumeration areas - that is primary sample units to be surveyed during the year - were selected. The ILCS 2013 sample included 32 enumeration areas in urban and 16 enumeration areas in rural communities per month.
The households to be surveyed were selected in the second round. A total of 432 households were surveyed per month, of which 279 and 153 households from urban and rural communities, respectively. Every month 48 interviewers went on field work with a workload of 9 households per month.

The sample frame for 2014-2016 was designed in accordance with the database of addresses of all private households in the country developed on basis of the 2011 Population Census results, with the technical assistance of the World Bank. The method of systematic representative probability sampling was used to frame the sample.
For drawing the sample, the sample frame was divided into 32 strata including 12 communities of Yerevan City (currently, the administrative districts). According to this division, a two-tier sample was drawn stratified by regions and by Yerevan. All regions and Yerevan, as well as all urban and rural communities were included in the sample in accordance to the shares of their resident households within the total number of households in the country. In the first round, enumeration areas - that is primary sample units to be surveyed during the year - were selected. The ILCS 2014 sample included 30 enumeration areas in urban and 18 enumeration areas in rural communities per month.
The method of representative probability sampling was used to frame the sample. At regional level, all communities were grouped into two categories - towns and villages. According to this division, a two-tier sample was drawn stratified by regions and by Yerevan. All regions and Yerevan, as well as all rural and urban communities were included in the sample in accordance to the shares of their resident households within the total number of households in the country. In the first round, enumeration districts - that is primary sample units to be surveyed during the year - were selected. The ILCS 2015 sample included 30 enumeration districts in urban and 18 enumeration districts in rural communities per month.

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

Research instrument
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The Questionnaire is filled in by the interviewer during the least five visits to households per month. During face-to-face interviews with the household head or another knowledgeable adult member, the interviewer collects information on the composition and housing conditions of the household, the employment status, educational level and health condition of the members, availability and use of land, livestock, and agricultural machinery, monetary and commodity flows between households, and other information.

The 2001 survey questionnaire had the following sections: (1) "List of Household Members", (2) "Housing Facilities", (3) "Migration", (4) "Education", (5) "Agriculture", (6) "Monetary and Commodity Flows between Households", (7) "Health (General) and Healthcare", (8) "Savings and Debts", (9) "Social Assistance".

The Diary is completed directly by the household for one month. Every day the household would record all its expenditures on food, non-food products and services, also giving a detailed description of such purchases; e.g. for food products the name, quantity, cost, and place of purchase of the product is recorded. Besides, the household records its consumption of food products received and used from its own land and livestock, as well as from other sources (e.g. gifts, humanitarian aid). Non-food products and services purchased or received for free are also recorded in the diary. Then, the household records its income received during the month. At the end of the month, information on rarely used food products, durable goods and ceremonies is recorded, as well. The records in the diary are verified by the interviewer in the course of 5 mandatory visits to the household during the survey month.

The Survey Diary has the following sections: (1) food purchased during the day, (2) food consumed at home during the day, (3) expenditures on food consumed away from home, (4) non-food products purchased and services obtained, (5) non-food products and services received free of charge, (6) household income and monetary inflows, (7) food products, which are usually consumed in small quantities during the day, (8) list of real estate, durable goods, and ceremonies. The interviewer’s manual provides detailed instructions for completing the questionnaire and the diary.

The Questionnaire, the Diary and the Interviewer's Manual are revised and adjusted, as appropriate, prior to the launch of the survey. Starting from 2012, data are codified under the "Classification of Individual Consumption by Purpose" (COICOP) classifier.

Response rate
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In 2001 the survey covered 19 urban and 28 rural areas with the sample size of 4,128 households.

摘要
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生活标准综合调查（ISLS），于2004年更名为生活条件综合调查（ILCS），由亚美尼亚共和国国家统计服务局（NSS）每年进行，为监测亚美尼亚的生活条件奠定了基础。ILCS是一项被普遍认可的最佳实践调查，用于收集关于家庭生活标准的资料。ILCS包含了关于家庭和单独个人福利的全面且有价值的资料，这为NSS提供了向公众提供有关人口收入、支出、贫困水平以及年度生活标准变化的最新信息的机遇。
地理覆盖范围
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城市和农村社区
分析单元
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- 家庭；
- 个人。
数据类型
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样本调查数据 [ssd]
抽样程序
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在2001-2003年的调查中，使用了两阶段随机抽样；第一阶段包括定居点——城市和村庄的选择，而第二阶段则专注于这些定居点中家庭的选择。调查基于每月按集群（样本单位）轮换家庭的原理进行。在2002年和2003年，家庭数量为387户，样本涵盖了2002年的14个城市和30个村庄以及2003年的17个城市和20个村庄。
在2004-2006年的调查中，ILCS的抽样框架使用2001年人口普查的地址数据库构建；该数据库在世界银行的援助下开发。亚美尼亚所有家庭的地址数据库被划分为48个层级，包括12个叶里温市的社区。来自其他地区（marzes）的家庭根据以下三个类别进行分组：人口超过15,000的大城镇；村庄和其他城镇。大城镇形成了16个层级（唯一的例外是瓦约茨·多尔地区，那里没有大城镇）。村庄和其他城镇各有10个层级。根据这种划分，根据marz层级进行了分层随机两阶段样本抽样。所有marzes以及所有城市和农村定居点都包括在样本人口中，根据居住在这些定居点的人口占总人口的百分比。
在第一步中，选择了定居点，即初级样本单位：2004年调查中，从48个城镇中调查了43个城镇，或占亚美尼亚所有城镇的90%；此外，2004年调查中，调查了951个村庄中的216个，或占全国所有村庄的23%。在第二步中，选择了受访者家庭：6,816户家庭（5,088户来自城市，1,728户来自农村定居点）。因此，自1996年调查以来，首次在marz层级上具有代表性的调查数据。
在2007-2012年的调查中，ILCS的抽样框架根据2001年人口普查的地址数据库设计，该数据库在世界银行的援助下开发。样本由两部分组成：核心样本和超样本。
1) 为了创建核心样本，样本框架（亚美尼亚所有家庭的地址数据库）被划分为48个层级，包括12个叶里温市的社区。来自其他地区（marzes）的家庭根据以下三个类别进行分组：人口超过15,000的大城镇、村庄和其他城镇。大城镇形成了16个层级（唯一的例外是瓦约茨·多尔地区，那里没有大城镇）。村庄和其他城镇各有10个层级。根据这种划分，根据marz层级进行了分层随机两阶段样本抽样。所有marzes以及所有城市和农村定居点都包括在样本人口中，根据居住在这些定居点的人口占总人口的百分比。
在第一步中，使用PPS方法选择了调查年的普查单位（即当年要调查的初级样本单位）。2007年的样本包括每月48个城市和18个农村普查单位。
2) 超样本来自包括在MCA-Armenia农村道路修复项目中的村庄列表。那些已经在核心样本中的村庄的普查单位被排除在该列表之外。从剩余的普查单位中，每月选择了18个普查单位。因此，农村样本量翻倍。
3) 在将核心样本和超样本合并后，在第二步中选择了调查家庭。每月调查656户家庭，其中368户来自城市，288户来自农村定居点。每月有82名调查员进行实地工作，他们的工作量包括每月8户家庭。
2013年的调查样本框架根据基于2001年人口普查结果的国家所有私人家庭地址数据库设计，该数据库在世界银行的援助下开发。使用了系统代表性概率抽样方法来构建样本。
为了抽取样本，样本框架被划分为32个层级，包括12个叶里温市的社区（目前，为行政区域）。根据这种划分，进行了分地区和叶里温的两级样本抽样。所有地区和叶里温，以及所有城市和农村社区都包括在样本中，根据其居民家庭在国内外家庭总数中的份额。
在第一轮中，选择了普查单位——即当年要调查的初级样本单位。ILCS 2013的样本包括每月城市和农村社区中的32个普查单位。
在第二轮中，选择了要调查的家庭。每月共调查了432户家庭，其中279户来自城市，153户来自农村社区。每月有48名调查员进行实地工作，他们的工作量包括每月9户家庭。
2014-2016年的样本框架根据基于2011年人口普查结果的国家所有私人家庭地址数据库设计，该数据库在世界银行的援助下开发。使用了系统代表性概率抽样方法来构建样本。
为了抽取样本，样本框架被划分为32个层级，包括12个叶里温市的社区（目前，为行政区域）。根据这种划分，进行了分地区和叶里温的两级样本抽样。所有地区和叶里温，以及所有城市和农村社区都包括在样本中，根据其居民家庭在国内外家庭总数中的份额。
在第一轮中，选择了普查单位——即当年要调查的初级样本单位。ILCS 2014的样本包括每月城市和农村社区中的30个普查单位。
抽样方法在区域层面，所有社区被分为两类——城镇和村庄。根据这种划分，进行了分地区和叶里温的两级样本抽样。所有地区和叶里温，以及所有城市和农村社区都包括在样本中，根据其居民家庭在国内外家庭总数中的份额。
在第一轮中，选择了普查单位——即当年要调查的初级样本单位。ILCS 2015的样本包括每月城市和农村社区中的30个普查单位和18个普查单位。
数据收集方式
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面对面 [f2f]
研究工具
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问卷由调查员在每月至少五次访问家庭时填写。在面对面访谈中，与户主或其他知识渊博的成年家庭成员进行访谈，调查员收集有关家庭的构成和住房条件、成员的就业状况、教育水平和健康状况、土地、牲畜和农业机械的可用性和使用情况、家庭之间的货币和商品流动以及其他信息。
2001年的调查问卷包括以下部分：（1）“家庭成员名单”，（2）“住房设施”，（3）“迁移”，（4）“教育”，（5）“农业”，（6）“家庭之间的货币和商品流动”，（7）“健康（一般）和医疗保健”，（8）“储蓄和债务”，（9）“社会援助”。
日记由家庭直接填写一个月。每天，家庭会记录其所有在食品、非食品产品和服务的支出，并提供此类购买的详细描述；例如，对于食品产品，记录产品的名称、数量、成本和购买地点。此外，家庭还会记录其从自己的土地和牲畜以及其他来源（例如，礼物、人道主义援助）收到的食品产品的消费情况。非食品产品和服务的购买或免费获得也会在日记中记录。然后，家庭会记录其在该月收到的收入。月底，还会记录很少使用的食品产品、耐用商品和仪式的信息。在调查月期间，调查员在5次强制访问家庭的过程中验证日记中的记录。
调查日记包括以下部分：（1）当天购买的食品，（2）当天在家消费的食品，（3）在外消费的食品支出，（4）购买和获得的服务，（5）免费获得的非食品产品和服务，（6）家庭收入和货币流入，（7）通常在一天中少量消费的食品产品，（8）房地产、耐用商品和仪式清单。调查员手册提供了填写问卷和日记的详细说明。
问卷、日记和调查员手册在调查开始前根据需要进行了修订和调整。自2012年起，数据根据“按目的分类的个人消费”分类器（COICOP）进行编码。
响应率
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在2001年，调查覆盖了19个城市和28个农村地区，样本量为4,128户。