What determines human beings' decisions to donate money to a charity? Using a nationally representative survey of the Japanese population, we demonstrate that having been taught by a female teacher in their first year of school makes individuals more likely to donate to charities following...

Using data on wrestlers and tournaments since the early 1970s, we study promotion practices in Sumo, a Japanese traditional sport. We show that, especially since 2010, foreign-born wrestlers trying to attain the second highest rank in Sumo were treated less favorably than Japanese born...

Using a representative sample from Japan and a difference-in-differences strategy, we investigate whether the effect of having grandchildren on the happiness of grandparents varies with the gender of their (own) single child. In line with our expectations, we find that maternal grandmothers have...

This study documents the matrilineal advantage in grandparent - grandchildren relationships in Europe, using data on 20 European countries and Israel from the Survey of Health, Ageing and Retirement (SHARE). We show that maternal grandparents look after grandchildren and provide financial or...

In speedboat racing in Japan, women racers participate and compete in races under the same conditions as men, and all individuals are randomly assigned to mixed-gender or single-gender groups for each race. In this paper we use a sample of over 140,000 observations of individual-level racing...