Based on a unique time-use survey of academic researchers in Japan, this study finds that research time decreases over the life cycle. The decrease in total hours worked and the increase in time spent on administrative tasks explain the decrease in research time. We also show that the decrease...

Based on a unique time-use survey of academic researchers in Japan, this study finds that research time decreases over the life cycle. The decrease in total hours worked and the increase in time spent on administrative tasks explain the decrease in research time. We also show that the decrease...

Based on a unique time-use survey of academic researchers in Japan, this study finds that research time decreases over the life cycle. The decrease in total hours worked and the increase in time spent on administrative tasks explain the decrease in research time. We also show that the decrease...

This paper simulates the power source mix of Japanese electricity in the year of 2023 based on the information publicly available from electricity companies and electric power system council. It evaluates eight scenarios based on three important parameters for the Japanese electricity market:...

This paper examines the effects of large-scale penetration of solar PV in Japan. Since the government adopted in 2009 the feed-in tariff on renewable energy sources, the solar PV has been popular for both for residential and non-residential users. This paper employs power system simulation and...

This paper demonstrates a fallacy of the wage differential between educational statuses. A large number of studies have based their approaches upon the wage ratio between educational statuses. However, this wage ratio contains a simple but crucial fallacy. The wage ratio is tricky; it changes...

This paper examines the effect of speculative motives in agricultural land on farm size and labor productivity in Japan, by use of the prefecture- and size-level census panel data in the period from 1990 to 2005. The paper employs a discrete choice model to formulate the farm behavior in the...