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by Robert Kyle Alldredge
The purpose of this paper is to study the process of technological change. An important part of the study of technological change is the examination of the determinants and rate of technological change. This paper focuses on the development and the diffusion of the tractor from its invention in 1892 to its nearly complete adoption in 1950.
O. A. C. Review Volume 31 Issue 10, June 1919
Ontario Agricultural College
