Keijiro Otsuka is a professor of agricultural and development economics at the National Graduate Institute for Policy Studies (GRIPS) in Tokyo. Prior to joining GRIPS in 2001, he was a professor at Tokyo Metropolitan University, a visiting researcher at IRRI from 1986 to 1989, a visiting research fellow at IFPRI from 1993 to 1998, and a lead researcher at the World Bank from 2011 to 2012. Formerly, he was the chairman of the board of trustees of IRRI from 2004 to 2007 and the president of the International Association of Agricultural Economists from 2009 to 2012. His work has focused on diverse issues covering the green revolution, land tenure and land reforms, property rights and sustainable management of natural resources, and human capital and poverty reduction in both Asia and sub-Saharan Africa.
He has published over 100 articles in refereed journals and 100 book chapters and book reviews. He is the coauthor or coeditor of 18 books. He received the Quality of Research Discovery Award from AAEA in 1993 and the Purple Ribbon Prize from the Japanese government in 2010. Currently, he is an editorial board member of Economic Development and Cultural Change, Agricultural Economics, and Environment and Development Economics.