著者

青 幹大 村田 治

出版者

生活経済学会

雑誌

生活経済学研究 (ISSN:13417347)

巻号頁・発行日

vol.25, pp.47-63, 2007

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Recently, Japanese society has been getting to be a stratified one. This paper concerns with a problem of the income disparity. Especially, we would like to clarify the relation between the higher education and the income disparity. We will investigate the internal rate of return about 55 colleges and show that the differential of the internal rate of return among the colleges does not change from 1972 to 1997. Moreover, we will examine the relation between the internal rate of return and the level of the difficulty of entrance exams and show the positive correlation between two. Additionally, we will investigate the income level of parents and point out the positive correlation between the level of the difficulty of entrance exams and the income level of parents. Finally, from these two positive correlations, we will bring out the negative spiral between the income level and the education level, in other words the negative spiral between the income disparity and the differential of education.