From 1969 -- 1979 , he was a member of the committee that selects the laureates for the Sveriges Riksbank Prize in Economic Sciences , the Economics Prize Committee .
From 1969 -- 1979 , he served as the committee 's chairman from 1975 -- 1979 .
From 1969 -- 1979 , he was a member of the committee that selects the laureates for the Sveriges Riksbank Prize in Economic Sciences , the Economics Prize Committee , and served as the committee 's chairman from 1975 -- 1979 .