社会政策学会誌
Online ISSN : 2433-1384
5 生協における正規,パート労働者の賃金格差 : A生協の事例に即して(III 投稿論文)
山縣 宏寿
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ジャーナル フリー

2008 年 19 巻 p. 247-268

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It is well known that the number of non-regular workers has been increasing greatly and the range of their tasks has been also expanding; however, non-regular workers' wage levels are still lower than those of regular workers. Moreover, wage differentials between regular workers and non-regular workers, if anything, have been extending. Thus, the question is if we focus on wage differentials between regular workers and non-regular workers who are engaged in similar jobs, what degree of wage differential between the two is there, and how much did wage differentials change during the 1990's? This paper attempts to clarify these two points, based on A Co-op's case, by examining (1) regular workers' and part-timers' wage payment systems, (2) the relationship between their function grades, and (3) data regarding their actual wages. Following is the summary of the results. The hourly wages of part-timers whose range of work overlaps that of regular workers changed within the range of 1,140 yen to 1,585 yen during the 1990's. Meanwhile, hourly pay of regular workers, calculated from their monthly salary, fluctuated in the 2,350-yen to 2,450-yen range. The wage ratio of part-timers against regular workers was 0.669 in 1995. The ratio decreased to 0.64 in 2000. My calculation shows that the difference was about 776 yen in 1995, and that it expanded to 876 yen in 2000. On the whole, in the 1990's, when part-timers' range of tasks overlapped those of regular workers, wage differentials between regular workers and part-timers widened. This tendency was confirmed when we examined differentials by calculating and comparing part-timers' and regular workers' annual incomes.

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