Fisher attended
Harvard University, where he was inducted into
Phi Beta Kappa in 1955 and received a
Bachelor of Arts degree (
summa cum laude) in 1956, followed by a
Master's degree in 1957 and a
Ph.D. in Economics from Harvard in 1960. His doctoral thesis was entitled
A Priori Information and Time Series Analysis. He served as an expert witness in matters involving antitrust, contract disputes, valuation, damages, and trademark infringement for many years. He was the chief economic witness for
IBM in its antitrust confrontation with the
United States Department of Justice, a case the Government dropped in 1982 after 13 years.{{cite news Fisher died on April 29, 2019, in
Belmont, Massachusetts from complications of Alzheimer's disease. He was 84.{{cite web ==Publications==