When one nation looks to another as an example for social and economic change, as the Soviet Union did to certain aspects of American experience for a time after 1917, the results are likely to reveal much about the borrower nation—its dominant values as well as its economy and social structure. The role which foreign, and particularly American, technology and industrial expertise played in the Soviet economy during the interwar period is still inadequately understood and is a subject of some controversy, with implications not only for an understanding of Soviet history and society but for the study of international technology transfers. (The term technology will be used here not only in the sense of “machinery” and processes, but in the broader sense of Simon Kuznets's phrase, “stock of knowledge,” that is, the knowledge of techniques of production, including economic organization.) Such transfers, particularly those between economically advanced and less-developed countries, have played an important but as yet inadequately studied role in modern history.