Otto Eckstein (August 1, 1927 – March 22, 1984) was a German-born economist at Harvard University, member of the President's Council of Economic Advisers from 1964 to 1966), and co-founder of Data Resources Inc. In 1979 he sold DRI for over $100 million to McGraw Hill. Eckstein held an A.B. from Princeton University and a Ph.D. from Harvard University.
He was a key developer and proponent of the idea of core inflation (Eckstein 1981). A frequent coauthor was Allen Sinai.
- Eckstein, Otto (1981), Core inflation
- Eckstein, Otto (1983), The DRI Model of the U.S. Economy
- Eckstein, Otto; Allen Sinai (1990), "1. The Mechanisms of the Business Cycle in the Postwar Period", in Robert J. Gordon, The American Business Cycle: Continuity and Change, University of Chicago Press, ISBN 978-0-226-30453-3