Professor, Faculty of Economics, Soka University, 2008-present

Adjunctive Professor, Graduate School of Agricultural and Life Sciences, University of Tokyo, 2011.

Adjunctive Professor, Faculty of Economics, Chiang Mai University, Thailand, 2007-2011

Visiting Scholar, Wharton School, University of Pennsylvania, Apr. 2012-Mar. 2013

Visiting Professor, Economics Department, De La Salle University-Manila, Philippines, Jan.-Mar, 2007

Visiting Scholar, Department of Economics, Pontifical Catholic University of Rio de Janeiro, Brazil, Feb.-Mar., 2008

Visiting Scholar, School of Accounting, Finance and Economics, Edith Cowan University - Joondalup, Australia, July-Aug., 2007

Visiting Scholar, School of Economics and Commerce, University of Western Australia, Aug.-Sep., 2005

Visiting Scholar, Faculty of Economics, Duke University, Feb.-Sep., 2004

Trustee, Japan Statistical Society, 2010-2013.

Associate Editor, Journal of the Japan Statistical Society, 2010-present.

Associate Editor, Asia-Pacific Financial Markets, 2010-present.