Household Integrated Income and Consumption Survey 2015-2016

Pakistan Bureau of Statistics (PBS) has developed its own area sampling frame for both Urban and Rural domains. Each city/town is divided into enumeration blocks. Each enumeration block is comprised of 200 to 250 households on the average with welldefined boundaries and maps. The list of enumeration blocks as updated from field on the prescribed performa by Quick Count technique for urban domain in 2013 and the updated list of villages/mouzas/dehs or its part (block), based on House Listing 2011 for conduct of Population Census are taken as sampling frame. Enumeration blocks are considered as Primary Sampling Units (PSUs) for urban and rural domains respectively.

A) Sample Design:
A stratified two-stage sample design is adopted for the survey.

B) Stratification Plan:
The stratification plan for HIICS survey for urban and rural areas is as follows:

• Urban Domain: Large cities Karachi, Lahore, Gujranwala, Faisalabad, Rawalpindi, Multan, Sialkot, Sargodha, Bahawalpur, Hyderabad, Sukkur, Peshawar, Quetta and Islamabad are considered as large cities. Each of these cities constitutes a separate stratum, further sub-stratified according to low, middle and high income groups based on the information collected in respect of each enumeration block at the time of demarcation/ updating of urban area sampling frame.
• Remaining Urban Areas: In all the four provinces after excluding the population of large cities from the population of an administrative division, the remaining urban population is grouped together to form a stratum.
• Rural Domain: Each administrative district for three provinces namely Khyber Pakhtunkhwa (KP) Punjab, Sindh, and each administrative division for Balochistan is considered as an independent stratum.

C) Selection of Primary Sampling Units (PSUs):
Enumeration blocks in both urban and rural domains are taken as Primary Sampling Units (PSUs). Sample PSUs from each ultimate stratum/sub-stratum are selected with probability proportional to size (PPS) method of sampling scheme. In both Urban and Rural domains, the number of households in an enumeration block is considered as measure of size.

D) Selection of Secondary Sampling Units (SSUs):
The listed households of sample PSUs are taken as Secondary Sampling Units (SSUs). A specified number of households i.e. 16 from both urban and rural sample PSU are selected with equal probability using systematic sampling technique with a random start.

E) Sample Size and its Allocation:
Keeping in view the objectives of the survey, the sample size for the four provinces has been fixed at 1668 sample blocks (PSU's) comprising 26688 households (SSU's), which is expected to produce reliable results at provincial level with urban and rural break down.