Departmental Bulletin Paper 妻の所得が夫妻所得の格差に与える影響に関する分析 : 妻の就業、就業履歴と所得格差
The Impacts of Women’s Earnings on Family Earning Inequality : Women’s Employment, Career Decisions and Earnings Disparities among Married Couples
ツマ ノ ショトク ガ フサイ ショトク ノ カクサ ニ アタエル エイキョウ ニ カンスル ブンセキ ツマ ノ シュウギョウ シュウギョウ リレキ ト ショトク カクサ

坂本, 和靖  ,  森田, 陽子  ,  Sakamoto, Kazuyasu  ,  Morita, Yoko  ,  モリタ, ヨウコ  ,  サカモト, カズハル

22 ( 1 )  , pp.37 - 48 , 2017-09 , 大阪大学大学院国際公共政策研究科 , オオサカ ダイガク ダイガクイン コクサイ コウキョウ セイサク ケンキュウカ
In Honor of Prof. Shigeharu NOMURA
The recent upsurge of the employment rate of Japanese women seems to cause a widening of earnings disparities among married-couple households. Based on panel data derived from the Japanese Panel Survey of Consumers (the Institute for Research on Household Economics), we explore women’s employment and decisions on their career path at their first birth (continue to work / leave / change jobs), and examine the impacts on the family earnings inequality among them. Our findings confirm the following three points. First, wives in their 20s and 30s are likely to work if their husbands’ earnings are low (Douglas-Arisawa’s Law). Second, wives’ earnings contribute to increase family earnings inequality until 2003 but to equalize it after 2008. Third, among couples of working mothers, although wives’ earnings have an effect to equalize family earning inequality regardless of wives’ career decisions, the effect is larger among the couples of wives who choose to continue to work after the first birth, compared to the couples in which wives chose to leave or change jobs after the first birth.

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