Ronald Shephard

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Ronald W. Shephard
Born (1912-11-22)November 22, 1912
Died July 22, 1982(1982-07-22) (aged 69)
Nationality American
Alma mater University of California, Berkeley
Known for Shephard's lemma
Scientific career
Fields Mathematical economics
Doctoral advisor Griffith C. Evans
Influences Oskar Morgenstern

Ronald William Shephard (November 22, 1912 – July 22, 1982) was Professor of Engineering Science at the University of California, Berkeley.[1]

He is best known for two results in economics, now known as Shephard's lemma and the Shephard duality theorem. Shephard proved these results in his book Theory of Cost and Production Functions (Princeton University Press, 1953), which Dale W. Jorgenson, in the preface of a reprint, called "the most original contribution to economic theory of all time."