1948 – Assistant at Kyoto University 1950 – Lecturer at Kyoto University 1950 – Assistant professor at Kyoto University 1951 – Associate professor at Osaka University 1963 – Professor of Economics at Osaka University 1966 – Professor of ISER (Institute of Social and Economic *Research) at Osaka University 1968 – Visiting professor at University of Essex 1969 – Keynes visiting professor at University of Essex 1970 – Professor at London School of Economics 1982 – Sir John Hicks professor at London School of Economics