Lorie Tarshis (22 March 1911 – 4 October 1993) was a Canadian economist who taught mostly at Stanford University. He is credited with writing the first introductory textbook that brought Keynesian thinking into American university classrooms,^[1] the 1947 Elements of Economics. The work swiftly lost popularity after it was charged with excessive sympathy to communism by McCarthyist activists.^[2][3] Instead, the 1948 Economics by Paul Samuelson brought the Keynesian revolution to the United States.

Tarshis was born in Toronto and received a bachelor's degree from the University of Toronto and master's and doctoral degrees in economics from Trinity College, Cambridge.^[4]

In The Vital Center (1949), author Arthur M. Schlesinger, Jr. describes the attack on Tarshis:

The most recent textbook witch-hunt provides an edifying example. In August 1947, on the letterhead of an organization calling itself the National Economic Council, Inc., a man named Merwin K. Hart wrote to every member of the boards of trustees of colleges using Elements of Economics, an economic text written by Professor Lorie Tarshis of Stanford University. An enclosed review denounced the book for its exposition of the doctrines of Lord Keynes and identified Keynseianism as a form of Marxism.
Hart's letter had an immediate effect. Organizations of small businessmen passed resolutions in his support. Trusettes and alumni wrote outraged letters to college presidents. Yet who was Merwin K. Hart? His record had been long known to students of the American proto-fascist demimonde...
Fortunately enough college presidents knew Hart's record to stand up courageously to the uproar... The American Economic Association eventually appointed a special committee to deal with the attacks on the Tarshis book and on other economic texts.^[5]

He died in a Toronto nursing home of Parkinson's disease at the age of 82. ^[1][4]

• Tarshis, Lorie (1959), "Factor inputs and international price comparisons", in Abramovitz, Moses; et al. (eds.), The allocation of economic resources: essays in honor of Bernard Francis Haley, Stanford, California: Stanford University Press, OCLC 490147128. ISBN 9780804705684.

• Tarshis, Lorie (1984), World Economy in Crisis: Unemployment, Inflation and International Debt, Toronto, Ontario: James Lorimer & Company, Publishers, ISBN 0-88862-626-6.