matsuyama became an assistant professor of economics at northwestern university in september 1987, associate professor in september 1991, and professor in september 1995. he spent 1991 at the of stanford university as a national fellow. he received the nakahara prize from the japanese economic association in 1996 and became a fellow of the econometric society in 1999. in addition to teaching at the university of chicago as a visiting professor in 1993 and at mit in 2008,[6] he has visited many universities and research institutes around the world and has been invited to deliver plenary lectures and keynote speeches at various international conferences.