Identification
idno
TZA-NBS-EES-2002-v01
Title
Employment and Earnings Survey 2002
Country
| Name | Country code |
|---|---|
| Tanzania | TZA |
Abstract
This Report presents the results of Employment and Earnings Survey conducted in 2002. Though some comparison can be made with the previous surveys, the two surveys of 2001 and 2002 were conducted based on the same method which is slightly different from the previous surveys.
Unit of Analysis
Institutions/organizations
Version
Version number
Version 01 (Public use file for web dissemination)
Version Date
2002
Coverage
Unit of Analysis
Institutions/organizations
Universe
All public sector establishments; all registered private establishments employing at least 50 persons; and a sample of all registered private establishments whose employment capacity is between 5 to 49 persons in Tanzania Mainland.
Producers and sponsors
Producers
| Name | Affiliation | Role |
|---|---|---|
| National Bureau of Statistics | Ministry of Planning, Economy and Empowerment | Producer |
Funding Agency/Sponsor
| Name | Abbreviation | Role |
|---|---|---|
| National Bureau of Statistics | NBS |
Sampling
Sampling Procedure
The Employment and Earnings Survey of 2002 used the existing Central Register of Establishments (CRE) frame. The selection of establishments from the CRE frame falls under the following groups: - (i) All establishments of the public sector found in the CRE frame of 2002. (ii) All establishments of the private sector with at least 50 employees found in the CRE frame of 2002. (iii) Samples of establishments of the private sector employing 5 to 49 persons.
Weighting
The weights were adjusted to suit the response status of the category of employment involved in the respective region.
The sampling weights for the strata were calculated using simple expansion formula denoted as:-
Weight = N/n where,
N = Total number of establishments in the stratum
n = Number of selected establishments
To account for non response, the sampling weight is adjusted as shown bellow:
Weight = (Nhij * (1 - (a hij/nhij)))/(nhij- a hij)
where,
Nhij = Total number of establishments in sector j of region i in stratum h where, j = 1…3, i = 1…20
and
h = Either employment size 5-9 or employment size 10-49
nhij = Number of selected establishments in sector j of region i in Stratum h where: j = 1…3, i = 1…20 and
h = either employment size 5-9 or employment size 10-49
ahij = Number of non-responding establishments in sector j of region i in Stratum h where: j = 1…3, i = 1…20 and h = either employment size 5-9 or employment size 10-49
h = Stratum (the survey dealt with two strata).
i = Region (the survey dealt with 20 regions)
j = Private sector (the survey dealt with three sub sectors)
Estimation of Totals is given by:
Yhij = ßhij * ( N hij * ( 1 - (ahij/ n hij))/ ( nhij - ahij)
Where:
ßhij = Responded establishments in sector j of region i in Stratum h j = 1…3, i = 1…20 and h = either 5 - 9 or 10 -49
The sampling weights for the strata were calculated using simple expansion formula denoted as:-
Weight = N/n where,
N = Total number of establishments in the stratum
n = Number of selected establishments
To account for non response, the sampling weight is adjusted as shown bellow:
Weight = (Nhij * (1 - (a hij/nhij)))/(nhij- a hij)
where,
Nhij = Total number of establishments in sector j of region i in stratum h where, j = 1…3, i = 1…20
and
h = Either employment size 5-9 or employment size 10-49
nhij = Number of selected establishments in sector j of region i in Stratum h where: j = 1…3, i = 1…20 and
h = either employment size 5-9 or employment size 10-49
ahij = Number of non-responding establishments in sector j of region i in Stratum h where: j = 1…3, i = 1…20 and h = either employment size 5-9 or employment size 10-49
h = Stratum (the survey dealt with two strata).
i = Region (the survey dealt with 20 regions)
j = Private sector (the survey dealt with three sub sectors)
Estimation of Totals is given by:
Yhij = ßhij * ( N hij * ( 1 - (ahij/ n hij))/ ( nhij - ahij)
Where:
ßhij = Responded establishments in sector j of region i in Stratum h j = 1…3, i = 1…20 and h = either 5 - 9 or 10 -49
Data Collection
Dates of Data Collection (YYYY/MM/DD)
| Start date | End date | Cycle |
|---|---|---|
| 2002 |
Mode of data collection
Mail Questionnaire [mail]
Metadata production
Document ID
TZA-NBS-EES-2002-v01
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| National Bureau of Statistics | NBS | Ministry of Finance | Documentation of the study |
| Accelerated Data Program | ADP | PARIS21 | Review of the metadata |
Date of Production
2002