operational material. 2 outline topics to be covered introduction to housing data sources data...
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Dwelling Servicesin the ICP 2011
Operational Material
2
Outline
Topics to be covered
Introduction to Housing
Data Sources
Data Requirements
Survey Forms
Validation Process
Timeline
3
Introduction
Estimating household expenditure on
dwelling services in the GDP
Calculating PPPs for dwelling services
HOUSING
Rentals Owner-occupied
Actual expenditure by households on rents for
dwellings
Estimate of how much owner-occupiers would have paid in
rent if not owning their dwellings
4
Housing Basic Headings
Code Basic Heading
110400 Housing, Water, Electricity, Gas and Other Fuels
1104111 Actual and imputed rentals for housing
1104311 Maintenance and repair of the dwelling
1104411 Water supply
1104421 Miscellaneous services relating to the dwelling
1104511 Electricity
1104521 Gas
1104531 Other fuels
… …
130100 Housing
1301111 Housing
5
Data Sources
Rental
Owner-occupied
Expenditures PPPs
Rental Survey Rental Survey
Rental Equivalents
User Cost Method
Rental Survey
Quantity or Direct Volume Method
6 6
Choosing Methods to Apply
Are more than 25% of dwellings rented?
Are most rented dwellings either
occupied by its citizens and not subsidized?
Are rented dwellings distributed evenly
throughout the country?
<THE USER COST METHOD>Obtain expenditure weights by:
- estimating actual rents paid for rented dwellings- applying the user cost method for owner-occupied dwellings.
<THE STANDARD APPROACH>Obtain expenditure weights by:
- estimating actual rents paid for rented dwellings;- imputing rents for owner-occupied dwellings using rents actually paid for similar dwellings.
NO No NOYE
S
YES
YES
7
Data Requirement
Rentals Quantity Method
Rental survey form Dwelling services questionnaire
Dwelling types (e.g. villa/ single-family house)
Size Electricity Inside water Private toilet A/C or central heating Structure Age
Number of dwelling units Number of rooms Number of occupants Quality Information including
electricity, inside water, and private toilet
Percent of dwelling units (rented/owner-occupied)
Yearly rent (LCU) Location (urban/rural) Comments
Quantity info according to dwelling type, construction type and location
Method
Survey Form
Global Specifications
Data to be provided
8
Rental Survey Form
Reference: ICP Operational Materials (website)
OBSERVATIONSDwelling
typeSize (m2)
Electricity Inside water
Private toilet
Private kitchen
AC/ central heating
Structure age
Yearly rent
(LCU)
Location(urban/
rural)Less than 5 yrs
More than 5 yrs
Villa/single-family house
120-180 yes yes yes yes yesX
Villa/single-family house
120-180 yes yes yes yes yesX
Villa/single-family house
120-180 yes yes yes yes noX
Villa/single-family house
120-180 yes yes yes yes noX
…
Attached house
80-120 yes yes yes yes yesX
Attached house
80-120 yes yes yes yes yesX
GLOBAL SPECIFICATIONS
9
Data Requirement
Rentals Quantity Method
Rental survey form Dwelling services questionnaire
Dwelling types (e.g. villa/ single-family house)
Size Electricity Inside water Private toilet A/C or central heating Structure Age
Number of dwelling units Number of rooms Number of occupants Quality Information including
electricity, inside water, and private toilet
Percent of dwelling units (rented/owner-occupied)
Yearly rent (LCU) Location (urban/rural) Comments
Quantity info according to dwelling type, construction type and location
Method
Survey Form
Global Specifications
Data to be provided
10
Dwelling Services Questionnaire
Reference: ICP Operational Materials (website)
All dwellings Types of construction Location
Houses Flats Total Modern Traditional Total Urban Rural Total
Number of dwelling units
Number of rooms
Usable surface area
Number of occupants
Land area occupied by dwellings
Number of dwelling units with:
Electricity (‘000s)
Inside water (‘000s)
Private toilet (‘000s)
Central heating
Air conditioning
Percent of dwelling units:
Rented
Owner-occupied
MANDATORY FOR
ALL COUNTRIES
11
Overall Validation Process
Rents (multiple times in a year) Quantity Data (once a year)
Data Compilation
National Level (Intra-country Validation)
Regional Level (Inter-country Validation)
Global Level (Inter-country Validation Across Regions)
Initial data validation Finalization of data
Initial data validation Finalization of Data
Analytical Tables (QT/DT)
only rents data
Temporal Analysis
12
Intra-country Validation 1
Rents Data
Rents and metadata to be added to the validation tool (excel)
Rents and metadata to be checked for errors and discrepancies
Rents to be checked for sub-national plausibility based on NCA’s market knowledge
Sub-national comparison between rents with similar specificationse.g. rents in the capital city < rents in rural area Populous regions generally have higher rents given similar specs
Rents to be checked for temporal plausibility based on NCA’s market knowledge
Between collection periods (seasonal variability)Between the 2005 and 2011 rounds
Step 1
Step 2
Step 3
Step 4
13
Intra-country Validation 2All dwellings Types of construction Location
Houses Flats Total Modern Traditional Total Urban Rural Total
Number of dwelling units
Number of rooms
Usable surface area
Number of occupants
Land area occupied by dwellings
Number of dwelling units with:
Electricity (‘000s)
Inside water (‘000s)
Private toilet (‘000s)
Central heating
Air conditioning
Percent of dwelling units:
Rented
Owner-occupied
Totals should be equal
Number of occupants divided by number of
dwelling units needs to be plausible
Number of units with inside water is generally higher
than number of units with private toilet
14
Inter-country validation
Rents Data Quantity Data
Convert rents in LCU to rents in common currency
Similar validation as basic editing from the intra-country process
Analytical Tables (QT, DT)
Temporal Analysis for Annual Data
Step 1
Step 2
Step 3
Together with Expenditure data, calculate Volume measure
and check plausibility
Step 4
Compare both resultsStep 5
Evaluation of completeness of Quality Indicators
Calculate quality-adjusted volume
Together with Expenditure data, calculate Indirect PPPsand check plausibility
15
Rental Survey Form
Reference: ICP Operational Materials (website)
AVG.RENTSDwelling
typeSize (m2)
Electricity Inside water
Private toilet
Private kitchen
AC/ central heating
Structure age
Country X
Average Yearly Rents
Less than 5 yrs
More than 5 yrs
Urban Rural Nat’l
Villa/single-family house
120-180 yes yes yes yes yesX
Villa/single-family house
120-180 yes yes yes yes yesX
Villa/single-family house
120-180 yes yes yes yes noX
Villa/single-family house
120-180 yes yes yes yes noX
…
Attached house
80-120 yes yes yes yes yesX
Attached house
80-120 yes yes yes yes yesX
GLOBAL SPECIFICATIONS
16
Timeline
2011 2012J F M A M J J A S O N D J F M A M J J A S O N D
J D
1QRents
Quantity Data(latest year)
4Q
Quantity Data(2011)
17
THANK YOU
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