Prof. Takashi Inoguchi passed away. I'm deeply sorry for his loss. 

I appreciate him for allowing me to attend at his joint seminar that was held at The University of Tokyo and Sophia University and Harvard University with Prof. Kuniko Inoguchi and Prof. Joseph S. Nye in the year of 1990.
In that seminar, I learned how to read and understand articles of political science and which element is the most important in contemporary econometrics. 

His loss is a tragedy.