An almost complete halt in the secular trend in stature at a relatively low level is observed in Japan since the late 1980s with average height of around 171 cm for males and 158 cm for females at age 18. Unidentified characteristics in the Japanese genetic pool or in the nutritional intake do...

This paper tests the generalized Trivers Willard hypothesis, which predicts that parents with heritable traits that increase the relative reproductive success of males compared to females will have relatively more males than females. As in Kanazawa (2005) we test if taller mothers have...