Abstract
Twenty years ago, Lenski and Nolan published a seminal article in which they established empirical links between modern development and traditional technology in developing countries. This analysis is expanded in two ways: by improving the indicators of traditional technologies, and by introducing a second dimension of structural complexity, the socio-political differentiation of traditional societies. Though two indices measure functionally related aspects, they have distinct impacts on the socio-economic development of the 65 non-western countries analyzed in this article. Since traditional socio-political differentiation explains modern development better than traditional technology, we suggest significant revisions, and a new interpretation of Lenski and Nolan's results.
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