Son preference in Japan

We examine the sex preference in Japan, using Japanese microdata, and find that parents in the 1920–1939 cohort have a lexicographic son preference. Further, the lexicographic son preference disappears in subsequent cohorts and a mixed preference is observed in parents with two children. These results are supported when the parents’ socioeconomic background is considered. Cohort effects such as weakening son preference and emerging mixed preference are observed. Moreover, when husbands are the eldest sons, a lexicographic son preference is observed only in the 1920–1939 cohort, although it persists in the subsequent cohorts when husbands are farmers/self-employed workers.