Expenditure and Consumption Survey 2011
West Bank and Gaza, 2011 - 2012
Identification
WBG_2011_PECS_v01_M
Expenditure and Consumption Survey 2011
| Name | Country code |
|---|---|
| West Bank and Gaza | PSE |
Income/Expenditure/Household Survey [hh/ies]
The Palestinian Central Bureau of Statistics (PCBS) conducted a household expenditure and consumption survey (PECS) since 1995, the first survey was conducted between 1/10/1995 and 30/9/1996, second survey between 1/1/1997 and 31/1/1997, third survey between 1/1/1998 and 31/1/1998, fourth survey between 15/3/2001 and 14/3/2002, fifth survey between 15/1/2004 and 14/1/2005, sixth survey between 15/1/2005 and 14/1/2006, seventh survey between 15/1/2006 and 14/1/2007, eight survey between 15/1/2007 and 14/1/2008, ninth survey between 15/1/2008 and 14/1/2009, tenth survey between 15/1/2009 and 14/1/2010, eleventh survey between 15/1/2010 and 14/1/2011, and the current survey (twelfth) between 15/1/2011 and 14/1/2012.
The findings of these surveys constituted a solid database and enabled PCBS to publish detailed statistics regarding expenditure and consumption for the first time.
The basic goal of this survey is to provide a necessary database for formulating national policies at various levels. This survey providing the contribution of the household sector to the Gross National Product (GNP). This survey determining the incidence of poverty and provided weighted data which reflects the relative importance of the consumption items to be employed to determine the benchmark for rates and prices of items and services. The survey is a fundamental cornerstone in the process of studying the nutritional status in the Palestinian territory.
Sample survey data [ssd]
Household and individual
Version
Version 01. Dataset for public distribution.
2012-06-25
Scope
The 2011 Palestinian Expenditure and Consumption Survey covered the following:
Household Identification: It contains detailed and particulars of the family, date of visit, particular of the field/office work team, number/sex of the family members.
Demographic Characteristics: Contains social, economic and demographic particulars of the selected family.
Statement of the long-lasting commodities and income generation activities: Includes a number of basic and indispensable items (i.e., Livestock, or agricultural lands).
Housing Characteristics: Includes information and data pertaining to the housing conditions, including type of house, number of rooms, ownership, rent, water, electricity supply, connection to the sewer system, source of cooking and heating fuel, and remoteness/proximity of the house to education and health facilities.
Monthly and Annual Income: Data pertaining to the income of the family is collected from different sources at the end of the registration / recording period.
Assistance and Poverty: Includes questions about household conditions and assistances that got through the the past month.
Household Expenditure and Consumption: Includes a list of 55 consumption and expenditure groups itemized and serially numbered according to its importance to the family. Each of these groups contains important commodities. The number of commodities items in each for all groups stood at 667 commodities and services items. Groups 1-21 include food, drink, and cigarettes. Group 22 includes homemade commodities. Groups 23-45 include all items except for food, drink and cigarettes. Groups 50-55 include all of the long-lasting commodities. Data on each of these groups was collected over different intervals of time so as to reflect expenditure over a period of one full year, except the cars group the data of which was collected for three previous years.
| Topic | Vocabulary | URI |
|---|---|---|
| ECONOMICS [1] | CESSDA | http://www.nesstar.org/rdf/common |
Coverage
The survey data is representative at region level (West Bank, Gaza Strip), locality type (urban, rural, camp).
- Region (West Bank, Gaza Strip)
- locality type (urban, rural, camp)
The survey covered all the Palestinian households who are a usual residence in the Palestinian Territory.
Producers and sponsors
| Name | Affiliation |
|---|---|
| Central Bureau of Statistics | Palestinian National Authority |
| Name | Role |
|---|---|
| Palestinian National Authority | Financial assistance |
| The Core Funding Group | Financial assistance |
| Swiss Agency for Development and Cooperation | Financial assistance |
| Name | Affiliation | Role |
|---|---|---|
| The Core Funding Group represented by the representative office | CFG | Responded to the survey instrument |
| Swiss Agency for Development and Cooperation | SDC | responded to the survey instrument |
Sampling
Sample and Frame:
The sampling frame consists of all areas enumerated in 2007. Each enumeration area consists of buildings and housing units comprising an average of around 124 households. These enumeration areas are used as primary sampling units (PSUs) in the first stage of the sampling selection.
Sample Size
The estimated sample size for the Expenditure and Consumption Survey is 5,171 households for the whole year. The non-response rate is estimated at around 20% of the total sample.
The calculated sample size for the Expenditure and Consumption survey 2011 is about 4,317 households, 2,834 households in West Bank and 1,483 households in Gaza Strip, with response rate88% (87.5% in west bank, 89.1% in gaza strip)
The sample is a two-stage stratified cluster sample:
First stage: selection of a systematic random sample of 215 enumeration areas.
Second stage: selection of a systematic random sample of 24 households from each enumeration area selected in the first stage.
Note: in Jerusalem Governorate (J1), 14 enumeration areas were selected. In the second stage, a group of households from each enumeration area were chosen using the 2007 census method of delineation and enumeration to obtain 24 responsive households. This ensures household response is the maximum to comply with the percentage of non-response as set in the sample design.
Enumeration areas were distributed over twelve months and the sample for each quarter covers sample strata (governorate, locality type).
Sample Strata:
The population was divided by:
1- Governorate
2- Locality type (urban, rural, refugee camp)
The calculated sample size for the Expenditure and Consumption survey 2011 is about 4,317 households, 2,834 households in West Bank and 1,483 households in Gaza Strip, with response rate 88% (87.5% in west bank, 89.1% in gaza strip).
Calculation of Households Weights:
The weight of statistical unit (sampling unit) in the sample is defined as the mathematical inverse of the selection probability. The sample of the survey is two stage stratified cluster sample, thus, the weights are calculated for each stage and the Households Weights is the multiplication of the two weights.
First stage weight:
The sample of enumeration areas is selected and the weight is called enumeration area weight (the sampling unit is enumeration area).The weight for enumeration areas from stratum h is calculated by dividing the number of enumeration areas in stratum h on the sample size of enumeration areas in stratum h.
Second stage weight:
The sample of households is selected and the weight is called household weight (the sampling unit is household). The weight of the Household from enumeration area (cluster) k is calculated by dividing the number of households in each cluster with the sample size of households within the cluster k.
The primary weight of households before modification is the multiplication of the weights of the first and second stages.
Then we adjust the primary weights for the households to compensate for the non - response of households by calculating adjustment factor for households weights for adjustment levels (Governorate and locality type ) by using households projections by adjustment levels in 2006. Then the final weight for the households ( FHW) is a multiplication of the adjustment factor by the primary weights for the household.
Survey instrument
The PECS questionnaire consists of two main sections:
First section:
Certain articles / provisions of the form filled at the beginning of the month, and the remainder filled out at the end of the month. The questionnaire includes the following provisions:
Cover sheet: It contains detailed and particulars of the family, date of visit, particular of the field/office work team, number/sex of the family members.
Statement of the family members: Contains social, economic and demographic particulars of the selected family.
Statement of the long-lasting commodities and income generation activities:
Includes a number of basic and indispensable items (i.e., Livestock, or agricultural lands).
Housing Characteristics: Includes information and data pertaining to the housing conditions, including type of house, number of rooms, ownership, rent, water, electricity supply, connection to the sewer system, source of cooking and heating fuel, and remoteness/proximity of the house to education and health facilities.
Monthly and Annual Income: Data pertaining to the income of the family is collected from different sources at the end of the registration / recording period.
Assistance and poverty: includes questions about household conditions and assistances that got through the the past month.
Second section:
The second section of the questionnaire includes a list of 55 consumption and expenditure groups itemized and serially numbered according to its importance to the family. Each of these groups contains important commodities. The number of commodities items in each for all groups stood at 667 commodities and services items. Groups 1-21 include food, drink, and cigarettes. Group 22 includes homemade commodities. Groups 23-45 include all items except for food, drink and cigarettes. Groups 50-55 include all of the long-lasting commodities. Data on each of these groups was collected over different intervals of time so as to reflect expenditure over a period of one full year, except the cars group the data of which was collected for three previous years.
These data was abotained from the recording book which is covered a period of month for each household.
Data collection
| Start | End | Cycle |
|---|---|---|
| 2011-01-15 | 2012-01-14 | year |
| Start date | End date |
|---|---|
| 2011-01-15 | 2012-01-14 |
| Name | Affiliation |
|---|---|
| Central Bureau of Statistics | Palestinian National Authority |
Four teams of female interviewers, three in the West Bank and one in the Gaza Strip carried out data collection. Each team consisted of a supervisor, and 10-20 female interviewers.
All field staff received a training session combining general theoretical and practical components. Interviewers, supervisors and editors for the survey were selected from those who worked on the previous rounds of PECS Surveys. Fieldwork procedures and organization were designed to ensure adequate supervision and the collection of high quality data. To this end, several quality control measures were used throughout fieldwork. An interviewer undertook between 120 and 150 household visits in a month. The households were asked to keep daily records in a diary during their recording month. The interviewer transferred the records in a questionnaire on a weekly basis. Data on durable goods were captured by the recall method for the last 12 months (rounds), in order to avoid large variance in estimates when the one-month approach is used.
Data processing
Data editing took place at a number of stages through the processing including:
- Office editing and coding
- During data entry
- Structure checking and completeness
- Structural checking of SPSS data files
Both data entry and tabulation were performed using the ACCESS and SPSS software programs. Data entry was organized in 8 files, corresponding to the main parts of the questionnaire. A data entry template was designed to reflect an exact image of the questionnaire, and included various electronic checks: logical check, range checks, consisting checks and cross-validation. Complete manual inspection of results after data entry was performed, and questionnaires containing field-related errors were sent back to the field for corrections.
Data Access
| Name | Affiliation | URL | |
|---|---|---|---|
| Central Bureau of Statistics | Palestinian National Authority | http://www.pcbs.gov.ps | diwan@pcbs.gov.ps |
| Is signing of a confidentiality declaration required? | Confidentiality declaration text |
|---|---|
| yes | Confidentiality of respondents is guaranteed by articles of the National Statistics |
Public use files, accessible to all.
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
Example:
Palestinian Central Bureau of Statistics. Expenditure and Consumption Survey 2011. Ref. WBG_2011_PECS_v01_M. Dataset downloaded from http://www.pcbs.gov.ps on [date].
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 | |
|---|---|---|---|
| Division of Users Services | Palestinian Central Bureau of Statistics | diwan@pcbs.gov.ps | http://www.pcbs.gov.ps |
| World Bank Microdata Library | microdata@worldbank.org |
Metadata production
DDI_WBG_2011_PECS_v01_M
| Name | Affiliation | Role |
|---|---|---|
| Palestinian Central Bureau of Statistics | Palestinian Nationa Authority | Production, execute, and documentation of the survey |
2012-12-15
Metadata version
Version 02 (July 2013). Adopted from version 1.0 (November 2012) DDI ("DDI-PSE-PCBS-PECS-2011-V1.0") that was done by metadata producer mentioned in the Metadata Producer section.