Martin Feldstein, George F. Baker Professor of Economics, passed away on Tuesday, June 11. He was a faculty member in the Department of Economics for 52 years, 1967 to 2019.  Marty's teaching and research focused on issues of taxation, social insurance and fiscal policy.  He also wrote widely on other aspects of U.S. and foreign economic policy and on the economics of national security.  He published more than 300 research papers. He received the Clark medal of the American Economic Association and later served as President of the Association. He served as Chairman of the Council of Economic Advisers for President Ronald Reagan.  He was president and CEO of the National Bureau of Economic Research from 1977 to 2008.  He taught the introductory economics course for 18 years and continues to teach graduate and undergraduate courses.