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Journal Article Two Propositions in the Theory of Induced Innovations Get access William Fellner William Fellner Yale University Search for other works by this author on: Oxford Academic Google Scholar The Economic Journal, Volume 71, Issue 282, 1 June 1961, Pages 305–308, https://doi.org/10.2307/2228769 Published: 01 June 1961
William Fellner (Thu,) studied this question.