Bolivia (2)
Title of the survey
Encuesta Económica Anual - Industria Manufacturera (Annual Economic
Survey - Manufacturing)
Organization responsible
Instituto Nacional de Estadística (INE).
Periodicity of the survey
Annual.
Objectives of the survey
To ascertain the structure and functioning of industry, and to provide
information for the National Accounts and the calculation of industrial
indicators.
Main labour topics covered by the survey
Information by groups of activity with reference to production, sales,
purchase and consumption of raw materials, capacity installed, workers
employed, wages and salaries by occupational category, consumption of
energy and fuel, certain expenses, gross formation of capital, etc.
Reference period
The year, with reference to the management or accounting period.
Coverage of the survey
Geographical
Capitals of departments, with the exception of Pando.
Industrial
All groups of activity in manufacturing.
Establishments
Establishments and enterprises of the private and State sectors with
more than five workers employed.
Persons
All workers employed.
Occupations
All occupations are taken into account together.
Concepts and definitions
Employment
Workers employed include all those persons working in or for
the establishment. They include persons temporarily absent from work
because of vacation, industrial dispute, sickness or accident or any
kind of short-time break.
Excluded are home workers, persons on indefinite leave or performing
military service.
Among the workers employed the following categories are identified
separately:
- permanent employees: include persons permanently working for the
establishment and receiving nominal wages established by occupational
category and sex (since 1992);
- unpaid workers: include workers who do not receive wages or salary
of any kind as such (proprietors-active partners and family workers);
- managers and administrators: administrative workers engaged in
specific tasks of management and administration;
- salaried employees: persons engaged in work of an administrative or
technical nature, in sales and in other services;
- wage earners: workers directly engaged in the production process
or related activities.
Earnings
Refer to the total of wages and salaries (before deductions or
reductions) paid to workers during the reference year, by occupational
category.
Wage/salary rates
Not relevant.
Hours of work
Not relevant.
International recommendations
The concept of wages and salaries corresponds to the guidelines
laid down by the United Nations for the purpose of industrial statistics
and employed in the production of the National Accounts.
Classifications
Industrial
The International Standard Industrial Classification of all economic
activities (ISIC), Rev.2, 1968, by activity group is used.
Occupational
Three occupational groups are employed: managers and administrators,
salaried employees and wage earners.
Others
The data are classified according to the size of establishments.
Two groups are distinguished: those with more than five but fewer than
15 workers, and those with 15 workers or more.
Sample size and design
Statistical unit
The unit of observation is the establishment in
manufacturing, classified according to ISIC on the basis of its
principal activity.
Survey universe / sample frame
The directory of economic establishments (DNEE) is used, giving a frame
which covers all establishments with more than five workers.
Sample design
A stratified sample design is used. Two strata are distinguished; one
for establishments with 15 or more workers, all of which are included in
the sample, and the other for establishments with more than five but
fewer than 15 workers.
Field work
Data collection
Information is collected by means of the single economic form. The
accounts of the establishment are required as support for the
information supplied.
Survey questionnaire
Not available.
Substitution of sampling units
Not relevant.
Data processing and editing
When the forms have been collected, examination and coding begin. There
follows the transcription of data, verification of information,
processing and publishing of final tables.
Types of estimates
Annual totals.
Construction of indices
Not relevant.
Weighting of sample results
Not available.
Adjustments
Non-response
None.
Other bias
None.
Use of benchmark data
Not relevant.
Seasonal variations
Not relevant.
Indicators of reliability of the estimates
Coverage of the sampling frame
Not available (see also under History of the survey).
Sampling error / sampling variance
Not calculated.
Non-response rate
Not available.
Non-sampling errors
Not relevant.
Conformity with other sources
Not relevant.
Available series
Data are available on the number of workers employed per year and by
industry group, on the total of wages and salaries paid, and other
industrial statistics (output, sales, etc.).
History of the survey
The industrial surveys date from 1936, when they began on a six-monthly
basis. Subsequently, with the compilation of the directory of
industrial establishments, surveys began to be held yearly.
From 1983 onwards, once the first national directory of economic
establishments was set up, a frame was obtained which enabled more
reliable industrial economic surveys. Sub-frames were identified within
the universe of establishments: a list-frame covering establishments
with five workers or over and an area-frame, covering establishments
with fewer than five workers.
The Annual Economic Survey investigates the list-frame. Until 1990,
this frame was subdivided into two strata; one with establishments with
20 or more workers, all of which are included, and one with
establishments with more than five but fewer than 20 workers from which
a sample is drawn.
Since the updating survey of the directory of economic establishments
(1990), the stratum for exhaustive inclusion covers establishments with
15 or more workers.
On the basis of the information in the second census of economic
establishments (1992), there has been a reclassification of industry,
based both on workers employed and on value added, with a view to
improving the representativeness and reliability of the information.
Documentation
Not available.
Confidentiality / Reliability criteria
Not available.
Other information
Data supplied to the ILO for publication
The average number of persons employed in manufacturing was published in
Tables 5A and 5B of the Yearbook of Labour Statistics until the
1994 edition.