Michael S. March, 83, an economist and senior fiscal analyst who retired from the Office of Management and Budget in 1973 after working on manpower legislation and other issues, died of cancer Aug. 15 at a health care center in Boulder, Colo. A resident of the Washington area for more than 30 years, he moved from Chevy Chase to Boulder after he retired.

Dr. March was a native of Haswell, Colo., and a graduate of the University of Colorado. He did graduate work in government at American University and the University of Illinois and received a doctorate in political economy and government from Harvard University. He served in the Navy during World War II.

He worked for OMB's predecessor, the Bureau of the Budget, for much of his career in Washington. He worked on a study of veterans' benefits and also spent a year as executive director of the Railroad Retirement Commission. He received the Bureau of the Budget's award for exceptional service.

After leaving Washington, Dr. March was an official at the University of Colorado and a professor there in the graduate school of public affairs.

He was a member of Phi Beta Kappa and Cedar Lane Unitarian Church in Bethesda.

Survivors include his wife, Marian Cook March of Boulder; three children, Gregory Michael March of Bethesda, U.S. Bankruptcy Court Judge Kathleen P. March of Los Angeles and Karolyn H. March of Portland, Ore.; a brother; and four grandchildren.