University of Tokyo

Abstract
Survey Number 0436
Survey Title Survey on the Actualities of Part-time Workers, 2005
Depositor Japan Institute of Workers' Evolution
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Period of Data Use Permission One year
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Summary The purpose of this survey was to deepen the understanding of the actual situation part-time workers face following the revisions of the guidelines for part-time labor in August 2003, which highlight the concept underlying related policies in consideration of the balance between part-time and regular employees.
Data Type quantitative research
quantitative research: micro data
Universe [Business survey] 13,000 business establishments that met the following conditions:
- All industries
- Nationwide
- Businesses employing five or more regular workers
[Individual survey] Part-time workers employed by businesses that received the questionnaire.
Two people per company
Unit of Observation Individual,Organization
Sample Size
Number of responses Valid response rate
[Business survey] 2,821 21.7%
[Individual survey] 4,347 16.7%
Date of Collection Survey reference period: As of September 1, 2005
Survey period: 2005/09/10 – 10/10
Time Period
Spatial Unit Japan
Sampling Procedure
Mode of Data Collection Communication survey
Investigator Japan Institute of Workers' Evolution
DOI
Sponsors (Funds)
Related Publications (by the Investigator) Please refer to the abstract in Japanese.
Related Publications (based on Secondary Analysis) List of related publications (based on Secondary Analysis)
Documentation [Business questionnaire][Individual Questionnaire]
Major Survey Items [Business survey]

(1) Basic information: Industry, number of workers hired for long-term without a specified contract period (joyo rodosha) at the business establishment, number of workers hired for long-term without a specified contract period in the whole company, composition of all employed workers at the business establishment by gender, employment status and prescribed working hours, number of part-time workers by occupation type and gender
(2) Percentage of regular working hours per week for part-time workers compared to regular employees, regular working hours for regular employees
(3) Contract period
(4) Thoughts on contract renewal
(5) Reasons for hiring part-time workers, items of part-time labor costs that is considered inexpensive
(6) Presence/absence/ratio of part-time workers whose duties are almost the same as regular employees
(7) Existence/ratio of part-time workers whose duties are almost the same as those of regular employees but whose mechanism and operation with respect to human resources utilization are not substantially different from those of regular employees
(8) Whether there is a difference compared to regular employees in the wage determination method (basic salary) applied to part-time workers whose duties and human resource utilization mechanisms and operations are almost the same as regular employees
(9) Wage level of part-time workers compared to regular employees when the part-time workers’ duties and human resources utilization system and operation are almost the same as for regular employees
(10) Reasons the wage determination method for part-time employees is different from that for regular employees in terms of the mechanism and operation of job and human resource utilization
(11) Reasons the wage level for part-time workers is different from that of regular employees when the part-time workers’ job and personnel utilization system and operation are almost the same as those of the regular employees
(12) Hourly wage for part-time worker with the highest wages
(13) Hourly wage for part-time workers with the lowest wages
(14) Whether or not part-time workers are promoted to high-responsibility positions/number of part-time workers promoted by job type and gender
(15) allowances and various systems for regular employees and part-time workers
(16) Reason allowances and various systems are only applied to regular employees or applied to part-time employees as well but are handled differently from those applied to regular employees
(17) Status of offering prenatal/postnatal leave system, parental leave system, nursing care leave system to part-time workers/number of people who used the systems
(18) Existence of part-time to full-time employee transition system
(19) Measures to promote discussions between labor and management: giving explanations regarding the treatment of part-time workers to workers, opportunities to hear part-time workers’ opinions about improving part-time employment management, means of handling complaints about the treatment of part-time workers
(20) Clarification of working conditions at the time of hiring
(21) Hearing opinions from part-time workers when creating or changing work rules
(22) Consideration of the circumstances of the part-time worker when determining or changing their working hours and/or working days
(23)Presence or absence of overtime work for part-time workers
(24) Granting priority to apply for the opportunities to become regular employees
(25) State of appointing short-term employment manager
(26) Enrollment to part-time social insurance (employment insurance, health insurance, welfare pension), reasons for not enrolling workers
(27) Raising awareness of part-time labor law and guidelines
(28) Progress in improving the treatment of part-time workers in consideration of the balance with regular employees compared to 2 years ago (when the guidelines were revised)

[Individual survey]

(1) Basic information: gender, age, marital status, spouse's annual income, main income source, highest level of educational attainment, length of service, commuting time
(2) Employment contract period, intention to renew, number of renewals
(3) Salary form/amount, presence/absence of summer bonus/amount, annual income from part-time work
(4) Whether enrolled in social insurance (employment insurance/public pension)
(5) Occupation type, job title
(6) Number of working days per week, regular working hours per day, presence/absence of overtime/monthly hours, presence/absence of weekend and holiday work/number of days
(7) Reason for working
(8) Reason for choosing part-time work
(9) Regular employees with the same duties: presence/absence, feeling that own wage is low in comparison, reasons for feeling that lower wage is acceptable, reasons for feeling it is acceptable, acceptable wage level
(10) Something other than wages respondent finds unfair that part-time workers are treated differently from regular employees doing the same duties
(11) Existence of adjustment of annual income or adjustment of working hours and reason for adjustment
(12) Labor union membership status
Date of Release 2006/11/13
Topics in CESSDA Click here for details

Topics in SSJDA Employment/Labor
Version 2006/11/13 :
Notes for Users Note that with this data set, it is not possible to match the data from the business survey and the individual survey.
Variable and value labels are written in Japanese.