This survey provides information on household income and expenditure to be able to measure the levels and changes in the living condition of the people, to observe the consumption patterns and to compute various other indicators such as poverty, food ratio, gini co-efficient of income and expenditure etc.
Key objectives of the survey
- To identify the income patterns in Urban, Rural, Estate Sector and Districts.
- To identify the income patterns by income levels.
- Average consumption of food items and non food items
- Expenditure patterns by sector and by different income levels.
- To identify the incidence of poverty by sector and income levels
Unit of Analysis
v1.0: Full edited dataset, original version for internal DPD use.
For this survey a sample of buildings and the occupants therein was drawn from the whole island.
Producers and sponsors
Department of Census and Statistics
Ministry of Finance and Planning
Goverment of Sri Lanka
A two stage stratified random sample design was used in the survey. Urban, rural and estate sectors of the District are the domains for stratification. The sample frame is the list of buildings that were prepared for the Census of Population and Housing 2012.
Selection of Primary Sampling Units (PSU's)
Primary Sampling Units are the census blocks prepared for the Census of Population and Housing - 2012. The sample frame, which is a collection of all census blocks in the domain, was used for the selection of primary sampling units. A sample of 25000 primary sampling units was selected from the sampling frame for the survey.
Each selected block was updated to include newly built housing units and excluded demolished housing units, which are no longer in existence. This updating operation was also carried out over a period of 12 months, starting from july 2012 to june 2013. For each PSU, updating was done about one month prior to the scheduled interviewing.
Selection of Secondary Sampling Units (SSU's)
Secondary Sampling Units are the housing units in the selected 2500 primary sampling units (census blocks). From each primary sampling unit 10 housing units (SSU) were selected for the survey. The total sample size of 25000 housing units was selected and distributed among Districts in Sri Lanka.