|
2003/2004 BLES Integrated Survey |
Metadata: About the
Data | Documentation
| Confidentiality
Survey Highlights | Questionnaire List of Statistical Tables: Employment | Industrial Relations Practices Occupational Injuries List of Coefficients of Variation Tables: Employment | Industrial Relations Practices | Occupational Injuries |
| Contact
Person: Teresa V. Peralta Chief LEO Labor Standards Statistics Division Tel No: (632) 5273489 Telefax No: (632) 5279325 E-mail: bleslssd@bles.dole.gov.ph | lssd@manila-online.net |
Metadata I. ABOUT THE DATA
Top A. OBJECTIVE/S OF THE SURVEY B. MAIN TOPICS COVERED BY THE SURVEY C. USES OF THE DATA D. REFERENCE PERIOD E. PERIODICITY (FREQUENCY) F. COVERAGE OF THE SURVEY Industrial: Non-agricultural industries except national postal activities, central banking, public administration and defense and compulsory social security, public education services, public medical, dental and other health services, activities of membership organizations and extra territorial organizations and bodies. Establishments: Non-agricultural establishments
employing 20 persons or more. Persons: All employed persons.
G. CONCEPTS AND DEFINITIONS Establishment- an economic unit engaged in one or predominantly one kind of economic activity under a single ownership or control at a single fixed location, e.g. mine, factory, store, bank, restaurant. For multi-unit enterprises with different outlets and subsidiaries or whose activities are located at different locations, each branch, outlet or subsidiary is considered an establishment. For firms engaged in activities which may be physically dispersed such as mining, construction, real estate development, transportation, communication, insurance, etc., the establishment is the base from which personnel operate to carry out their activities or from which they are paid. Employment- refers to persons who worked or received
pay from the establishment. This includes: Working Owners without Regular
Pay; Total Employment includes persons on paid vacation, sick, maternity, paternity, service incentive leave and other paid leaves, persons working away from the establishment but paid by and under its control and workers on strike. It excludes silent or inactive partners, members of the board of directors paid solely for attendance at meetings, workers on indefinite leave, laid off workers for six (6) months or more, persons purely on commission and without employer control, consultants, persons on retainer basis, contract out/agency hired workers and homeworkers. Workers Paid the Minimum Wage- workers who are paid the
applicable minimum wage rates fixed by the Regional Tripartite Wages and
Productivity Boards. Persons with Disabilities- workers suffering from
restriction or different disabilities, as a result of mental, physical or
sensory impairment, to perform an activity in the manner or within the range
considered normal for a human being. Time-rate Workers- those paid on the basis of a time
unit of work such as an hour, a day or a month. Part-time Workers - those who work at jobs which provide less than the working time normal to the establishment.
Where more than one person is injured in a single accident, each case of occupational injury is counted separately. If one person is injured in more than one occupational accident during the reference period, each case of injury to that person is counted separately. A recurring absence due to an injury resulting from a previous occupational accident is treated as the continuation of the same case of occupational injury not as a new case.
Unpaid Workers- apprentices and learners without regular pay
and persons without regular pay who work for at least one-third of the working
time normal to the establishment; and
Employees- categorized
into:
i. Regular Workers - those hired to perform activities which are
usually necessary or desirable in the usual business or trade of the employer
and usually worked on permanent status; and
ii. Non-Regular Workers
- consist of:
H. UNIT OF MEASUREMENT
I. CLASSIFICATIONS
Industrial: The industry classification is based on the 1994 Philippine Standard Industrial Classification (PSIC). It was patterned after the International Standard Industrial Classification (ISIC), Rev. 3 of the United Nations, up to the 4-digit level, but with modifications to suit national situations and circumstances.
Employment Size: The classification of establishments according to employment size is based on the average total employment,e.g. 20-99, 100-199 and 200 and over.
Others:
J. SAMPLING DESIGN
Survey universe/sample frame: The sampling frame used for the survey was taken from the List of Establishments of the National Statistics Office. On a partial basis, this is regularly updated based on the responses to other surveys of the BLES, establishment reports on retrenchments and closures submitted to the Regional Offices of the Department of Labor and Employment and other establishment lists.
Sample design: Establishments in the sampling frame were stratified by 3-digit industry (domain) and by employment size (stratum), i.e., 20-99, 100-199 and 200 and over. However, industries observed to be heterogeneous within their 3-digit classification were further broken down at the 4-digit level. Geographical location was not considered in the stratification to allow for detailed industry groupings.
Based on past experiences and accounting for resource availability, total sample size has been estimated at around 7,000. For the 2003/2004 BITS, establishments employing at least 100 workers were covered with certainty as their employment represents about 60 per cent of total employment in non-agricultural establishments employing at least 20 workers. These establishments, however, comprise only 11 percent of the reference establishment population.
The sample sizes for the industry groups in the non-certainty stratum (20 - 99) were derived as follows:
Step 1: n20-99 = 6,500 - (n100-199 + n>200) where n20-99 is the residual sample size after excluding the sample sizes of the certainty strata from 6,500 (Note: the desired sample size of around 7,000 includes the built-in replacement samples.) Step 2: n20-99,k = (n20-99 x N20-99,k/N20-99) The sample sizes of the industry groups (k) falling in the stratum were determined proportional to the establishment population (N) of the stratum. Step 3: adjusted n20-99,k = n20-99,k/0.8 The sample size for each cell (industry group and employment size) was adjusted to build-in replacement, e.g. sample size divided by 0.8 as expected retrieval rate is 80 percent. A minimum of 5 samples per cell is maintained. If the establishment population of the cell is less than 5, all the establishments were taken as sample respondents.Sample size: For 2003/2004 BITS, the sample size was 7,191,of which 6,012 were found to be eligible sampling units.
K. FIELD WORK
Data collection: The survey is conducted in coordination with the Regional Offices of the Department of Labor and Employment. On a project basis, employees are hired to personally deliver and retrieve the questionnaires from the establishments. In some instances, questionnaires are mailed to establishments in less accessible or conflict prone areas, in which case a self-addressed envelope is provided. The establishments may also submit the accomplished questionnaires through fax. Delivery of questionnaires starts in July of each year and retrieval will commence after all questionnaires have been delivered or within 10 working days from delivery to an establishment or on a date agreed upon by the contact person and the enumerator. The basic data originate from the payroll, accident and other related records of establishments.
Survey
questionnaire: The questionnaire is made up of several parts,
i.e.
Cover page - contains the address box for the establishment and other particulars;
Page 2- provides information on the survey objective and uses of the data, confidentiality clause, collection authority, authorized field personnel, coverage, periodicity and reference periods, due date and availability of results;
Part I General Information - This portion inquires on main economic activity and major products/goods or services of the establishment; average employment and number of employees; regular working hours per day for majority of employees; days actually worked during the year and days not worked but considered paid during the year for majority of employees; establishment characteristics such as ownership (wholly Filipino, with foreign equity, wholly foreign), spread of operations (whether establishment is a multinational), market orientation (domestic market only, export only or both), presence of a union and existence of a collective bargaining agreement in the establishment. Union membership and CBA coverage are likewise inquired on;Part II Employment - This section requires data on total employment and its breakdown into working owners, unpaid workers and employees (managers/executives, supervisors/foremen and rank and file: regular and non-regular workers). It also looks into employment of specific groups of employees, types of jobs contracted out and the number of agency-hired workers;
Part III Industrial Relations Practices - This part inquires on establishment practices on balancing work and family life; flexible work arrangements; job-related training provided to employees; mechanisms for workers’ participation in decision making process;
Part IV Occupational Injuries - This inquires on the incidence of occupational accidents; cases of occupational injuries and lost workdays (part of the body injured, cause and agent of injury); occupational diseases; number of commuting accidents and workers injured; and hours actually worked by all employed persons;
Part V Certification - this box is provided for the respondent’s name and signature, position, and telephone/fax numbers and e-mail address; time spent in answering the questionnaire; comments or suggestions (on the data it provided for the survey and improvements on the design/contents of the questionnaire); and
Part VI Survey Personnel - this portion is allocated for the names of personnel involved in collection, editing and review of each questionnaire and dates when the activities were completed; and
Substitution of sampling units: There is no substitution of sampling units as replacement is built-in.
L. DATA PROCESSING AND EDITING
Data are manually and electronically processed. Upon collection of accomplished questionnaires, enumerators perform field editing before leaving the establishments to ensure completeness, consistency and reasonableness of entries in accordance with the field operations manual. The forms are again checked for data consistency and completeness by their field supervisors. The BLES personnel undertake the final review, coding of information on classifications used, data entry and validation and scrutiny of aggregated results for coherence. Questionnaires with incomplete or inconsistent entries are returned to the establishments for verification, personally or through mail.
Microsoft Access is used for data encoding and generation of validation prooflists. After checking accuracy of encoding based on the prooflists, a conversion program using SPSS is executed to generate output tables.
M. TYPES OF ESTIMATES
The above data would be available by industry.
N. ESTIMATION / COMPILATION METHODOLOGY
Due to the inadequacy of the frame used, there are reports of permanent closures, duplicate listing and shifts in industry and employment outside the survey coverage. Establishments that fall in these categories are not eligible elements of the frame and their count is not considered in the estimation. In addition to non-response of establishments because of refusals, strikes or temporary closures, there are establishments whose questionnaires contain inconsistent item responses that are not included in the processing as these have not replied to the verification queries by the time output table generation commences. Such establishments are also considered as non-respondents.
Respondents are post-stratified as to industry and employment size classifications. Non-respondents are retained in their classifications.
Estimates are obtained by simple expansion, i.e., by multiplying the sample values at the cell level (industry and employment size: 20-99, 100-199 and 200 or more) by the corresponding blowing-up factor which is the ratio of the eligible population of establishments to the corresponding number of responding establishments.
The estimates are aggregated to the desired levels to arrive at total estimates of the population, e.g. number of minimum wage earners or number of establishments with unions. A population ratio is obtained by dividing total estimate of a variable with the total estimate of another variable, e.g. total lost workdays of cases resulting to temporary incapacity by corresponding number of cases to derive average days lost.
O. ADJUSTMENTS
Other bias: No adjustments are made.
Use of benchmark data: No benchmark data is used.
Use of other surveys: No other survey data are used.
Seasonal variations: Not applicable.
P. INDICATORS OF THE RELIABILITY OF THE ESTIMATES
Sampling error/sampling variance: Computed for key variables.
Non-response rate: For 2003/2004 BITS, the non-response rate in terms of eligible sampling units is 28 percent.
Non-sampling errors: These may occur due to inaccuracies in reporting by establishments and enumerators, mistakes in coding, editing and data entry. However, efforts are made to reduce non-sampling errors by careful design of the questionnaire, intensive training of survey personnel, linkages with key informants (employers’ groups) and through adoption and documentation of efficient operating procedures.
Conformity with other sources: The survey results are checked for consistency with the results of previous BITS data or related administrative data.
Estimates for non-survey years: Not relevant.
Q. HISTORY OF THE SURVEY
R. AVAILABLE SERIES:
A. PERIODICITY OF DISSEMINATION
C. DISSEMINATION FORMATS
Electronic
III. CONFIDENTIALITY Top
The compilation and dissemination of the data are governed by the terms and conditions of Executive Order No. 126 (January 30, 1987) creating the Bureau of Labor and Employment Statistics.
While E.O. 126 is silent on the confidentiality of individual responses from surveys conducted by the BLES, it collects data under the pledge of confidentiality. A statement to this effect is printed in all the questionnaires of BLES surveys.