Puerto Rico

Title: Puerto Rico Urban Consumer Expenditure and Income Survey 2000/2001

GENERAL INFORMATION AND BASIC DEFINITIONS

1. Background

Further information is available from Dept of Labor and Human Resources, Puerto Rico of 505 Munoz Rivera av, Prudencio Rivera Martinez Bl 17th Floor, San Juan Puerto Rico 00918, phone: 787 754 5340, fax: 787 765 4687, e-mail: ayusoe@bls.gov.
Data have been collected by household survey since 1941.

2. Purpose and coverage

The following purposes are considered to be very important or of some importance:

Geographic coverage: Urban areas only with the following geographic areas excluded: remote or inaccessible areas1 .

Population coverage:
The following types of household are included in the data collection:
The following types of household are excluded in the data collection:

Units:
Dwelling units are used in the sample selection and are characterised by:
Data are recorded for the consumer unit, expenditure unit or spending unit which is characterised by:

Unit members: 2 Usual residents are always included as unit members. Visitors (not usual residents) temporarily living in the dwelling are not included as unit members. Domestic staff living in same dwelling/compound are not included in the unit. Renters living in same dwelling/compound are not included in the unit. Boarders living in same dwelling/compound are not included in the unit.

Head of unit:
The concept of head of household/other unit is used in this survey and is characterised by:

3. Reference periods

The time period to which income and/or expenditure statistics refer when released/published is from 05/00 to 04/01. These data are collected in the period from 05/00 to 04/01. This survey is conducted irregularly/occasionally. The statistics are published irregularly/occasionally.

SURVEY METHODOLOGY

4. Sample design

The Primary, Secondary and Ultimate Sampling Units are block, dwelling and consumer unit respectively.

Stratification:
Areas/districts were stratified using the following criteria:
Households/Consumption Unit, Income Unit, Family Unit were stratified using the following criteria:

The sampling frames for the Primary Sampling Unit (PSU) and Ultimate Sampling Unit (USU) were the list of Census blocks and a separate listing exercise respectively. Primary Sampling Units (PSU) were selected using probability proportional to size. The sample size was 5000 households or other units. The overall response rate for the survey was 99.1 percent. Errors/biases were minimized by using an updated sampling frame, and imputationusing "hot deck" procedure (comment).

Enumeration procedure: Enumeration uses a single round survey design in which each reporting unit is enumerated only once. The sample is divided into 10 representative sub-samples. No action is taken to select a smaller set of reporting units for more detailed questioning.

The total amount of information for each hh would have taken more time than the respondents were willing to accept, (diaries and expenditure schedules). So a sample of 25000 was designed to complete the schedule. Then a procedure was designed to select an adjacent block in each block of the initial sample (correlated sample), to obtain the diary information..

DATA COLLECTION, CONCEPTS, DEFINITIONS AND CLASSIFICATIONS

5. Income data

Income data are collected. Receipts do not have to be regular and recurring to be considered as income. Income includes receipts resulting from the sale or reduction of assets and/or from incurring liabilities are included in income. Income includes receipts that are not currently available to the unit.

The following receipts are collected separately:6
The following receipts are not collected:6

Income data were collected separately for each person receiving income. Components of income for an individual were collected directly from each individual or from one person reporting for all individuals. Negative values (business losses) were included when computing self-employment income.

6. Expenditure data

Data collection method:
Diaries are used to collect expenditure data and are maintained for two weeks.

Diaries are used to collect expenditure on the following items:

Interviews are used to collect expenditure data with the respondent completing the interview by a mix of recall and using documentation.

Data for the following expenditure items are collected by referring:4
Data for the following expenditure items are not collected by interview because they are collected by diary:
The following types of expenditure items are classified as 'Household consumption expenditure':
The following types of expenditure items are collected on a 'payments' basis:

Classification: A national classification that is not consistent with COICOP is used for classifying expenditure and has 1332 separate categories at the finest level. 5

7. Other Data Collection Issues

The following other topics are covered:

Households are requested to indicate whether durable goods are new or second-hand when their acquisition is recorded.

Non-response: There is no substitution for non-response, whether by non-contact or by refusal.

Non-response is reduced using more than one repeat visits.
Reporting errors are reduced using the following measures:

DATA PROCESSING, ANALYSIS AND DISSEMINATION

Answers are pre-coded on data collection forms to the extent possible.

The responses are edited by the following:

Extreme values are deleted. 7 In-kind receipts and consumption of own production are included in the estimates. In-kind receipts are valued using: the respondent's estimate. Consumption of own production is valued using: the respondent's estimate.

Treatment of owner-occupied housing: Values of owner-occupied housing are included in the total income/expenditure estimates and are valued using the rental equivalent net of housing costs usually paid by owners. (respondent provides an estimate )

Treatment of selected groups/values in analysis: Some households/units are excluded from analysis because of incomplete response. Missing values are imputed only on some occasions . Supplementary sources are not used to adjust estimates for under- or over-reporting. rural households are excluded from data analysis.

Weighting:
Weighting factors are used to adjust for:

Sampling errors: Sampling errors are not computed.

Tabulation and Analysis: Statistics are presented showing averages per year and statistics are analysed and tabulated for households and for individuals separately.

The following classifications are used for tabulation and analysis of income statistics:
The following classifications are used for tabulation and analysis of expenditure statistics:

Documentation and Dissemination:

Additional statistics (or special tables on request) are not available for public use. Separate tables are published for8 households with wages/salaries as main source of income. Files of unidentifiable unit data are not available (or available on request) for public use.


(1) Offshore islands. (2) Domestic staff, boarders and lodgers are included in another consumer unit within the household. (3) Special strata was created to include 1990 zero population blocks up to 4-person/blocks. (4) Data for Housing and Housing services are also collected by referring to expenditures in the last 3 months. (5) Puerto Rico follows the US Bureau of Labor Statistics classification code. (6) All receipts were collected using May 1st, 2000 to April 30th, 2001, as the reference period. (7) when obviously wrong, and amended when justified. (8) The study is being finalized and a future publication date has yet to be decided by the Department of Labor.