Edgar Weinberg, 68, a government economist who specialized in issues involving labor-management cooperation and automation, died of cancer Aug. 5 at Suburban Hospital.

Mr. Weinberg retired in 1980 as a program adviser in the office of the assistant secretary for policy evaluation and research at the Labor Department. He began his career in the mid-1930s when he joined the old Social Security Board in Baltimore. He came to Washington before World War II as an economist with the Bureau of Labor Statistics, served in the Army in Europe and North Africa during the war, then rejoined the Bureau in 1946.

He was deputy assistant commissioner of the Office of Productivity and Technology from 1952 to 1971, then became assistant director at the National Center for Productivity and Quality of Working Life. He returned to the Labor Department in 1978.

Since retirement, Mr. Weinberg had been an economics consultant. He wrote a book, "Labor-Management Cooperation, the American Experience," published in 1982.

A native of Chicago, Mr. Weinberg graduated from City College of New York and earned a master's degree in economics at American University.

A resident of Bethesda, he was a member of B'nai B'rith and a past president of the Washington chapter of the Industrial Relations Research Association.

Survivors include his wife, Claire, and two sons, Michael J. and Daniel J., all of Bethesda, and his mother, Kate Weinberg of Arlington.