Research and Education Council Member, Yokohama National University, 2009-2011.

Professor, Faculty of Economics, Yokohama National University, Japan, from 1999.

Japan Statistical Society, Member.

Japanese Economic Association, Member.

Member of the Science Council of Japan, 2006-2020

Fellow, Modeling and Simulation Society of Australia and New Zealand, elected 2008.

Co-editor, Japanese Economic Review.

Editor, Journal of the Japan Statistical Society, 2010-2012.

Member of International Editorial Board, Borneo Science Journal, from 2012.

Member of the Advisory Board, Brazilian Journal of Business Economics from 2012.

Member of Editorial Board, Journal of Risk and Financial Management, from 2013.

Member of Editorial Board, Journal of Applied Statistics, from 2013.

Member of Editorial Board, Annals of Financial Economics, from 2013.

Member of Editorial Board, Journal of Informatics and Data Mining, from 2015.

Member of Editorial Board, Journal of Heath & Medical Economics, from 2015.