Interaction between knowledge and technology: a contribution to the theory of development

This article attempts to explain the large and persistent disparities in levels of output per worker across countries. It is argued that an explanation for these disparities requires an understanding of the relationship between knowledge and technology. The model that is constructed can be summarized as an open-economy version of the Solow-Swan growth model, in which technological change is investment specific, and knowledge about new technologies is embodied in labour. In the model, income differences arise because poor countries lack the knowledge to implement foreign technologies productively. Furthermore, these disparities persist when countries differ in their ability to learn.