Abstract
This paper examines two hypotheses, using the SSM data surveyed at 5 time points. The first hypothesis maintains that intra-generational mobility equalizes inter-generational mobility from father's job to son's job at the surveyed point. The second states that equalization of inter-generational mobility by period effect is caused by changes in intra-generational mobility. Most of the results of the analysis applying logistic regression model supported the first hypothesis. Whereas some results sustained the second hypothesis, others did not. These findings as a whole revealed that intra-generational mobility equalized inter-generational mobility in Japan until 1995.
