[2005-] Asia-Pacific Journal of Operational Research, Editorial Advisor.
[2004-2012] Algorithmic Operations Research, Editorial Advisory Board.
[2003-2010] Pacific Journal of Optimization, Associate Editor.
[2003-2010] Applied Mathematics and Optimization, Associate Editor.
[2002-2005] The Journal of Operations Society of Japan, Advisory Editor.
[2000-2001] The Journal of Operations Society of Japan, Editor-in-Chief.
[1999-2001] RAMP (Research Association of Mathematical Programming), Chairman.
[1994-2011] Mathematical Programming, Series A, Associate Editor.
[1991-1994] Mathematical Programming Society, Council Member-at-Large.
[1989-1997] SIAM Journal on Optimization, Editorial Board.
[1989-1994] Mathematical Programming, Series A, Co-Editor.
[1988-1994] Mathematical Programming, Series B, Associate Editor.
[1988-1991] Linear Algebra and Its Applications for the special Issue on “Interior Point Methods for Linear Programming”, Editor.
[1982-1994] Mathematics of Operations Research, Associate Editor.
[1982-1988] International Abstract of Operations Research, Contributing Editor.