Martin Stuart Feldstein ( FELD-styne, November 25, 1939 – June 11, 2019) was an American economist. He was the George F. Baker Professor of Economics at Harvard University, and the president emeritus of the National Bureau of Economic Research (NBER). He served as President and Chief Executive Officer of the NBER from 1978 through 2008 (with the exception of 1982 to 1984). From 1982 to 1984, Feldstein served as chairman of the Council of Economic Advisers and as chief economic advisor to President Ronald Reagan (where his deficit hawk views clashed with Reagan administration large military expenditure policies). He was also a member of the Washington-based financial advisory body the Group of Thirty from 2003.
He is also known as Martin S. Feldstein and Martin Stuart Feldstein.