Using a data set for all sumo wrestlers in the post-World War II period, this paper investigates how wrestlers’ body mass index (BMI) is associated with wrestlers’ winning rate and absence rate. Further, the effect of BMI is compared between an early period (before the emergence of foreign...

Japanese household-level data describing a husband's earnings, his wife's working status, and their schooling levels are used to test the implications of a model proposing a time-consuming process of human capital accumulation within marriages, in which an educated wife is more productive. The...

In the Japanese Professional Baseball League, the starting pitcher is announced prior to the game in the Pacific League but not in the Central League. I attempt to investigate how the release of information concerning a starting pitcher prior to the game affects attendance. My major findings...

This paper investigates whether and the extent to which the Fukushima nuclear accident 2011 affected human behavior based on a natural experiment with the Japanese Professional Baseball League. Comparing the duration of games in the 2010 and 2011 seasons reveals the following. (1) The duration...

In the Japanese Professional Baseball League, the starting pitcher is announced prior to the game in the Pacific League but not in the Central League. I attempt to investigate how the release of information concerning a starting pitcher prior to the game affects attendance. My major findings...

Sumo wrestling is a traditional fighting sport in Japan and has been popular since the 18th century (the Edo period). Using a data set for all sumo wrestlers in the post-World War II period, this paper investigates how wrestlers’ body mass index (BMI) is associated with their win rate and...