Descriptive accounts of the Japanese educational system often refer to
the intense competition that characterizes college entrance examinati
ons. This competition reflects the high degree of segmentation in the
Japanese labor market; in Japan, the labor market sector in which one
secures his or her first job has a major impact on socioeconomic oppor
tunities throughout the entire work career. We analyze data on Japanes
e men entering the labor market from 1954 through 1975. Education is t
he major determinant of the sector of one's first job, bur our results
suggest that this effect primarily derives from the relative ranking
of educational attainment within one's job-market cohort. Our findings
support a job-competition quelling model in which education serves as
a screening device that rations employment in the primary sector