"Chen and Dahlman assess the effects of knowledge on economic growth. By using an array of indicators, each of which … represents an aspect of knowledge, as independent variables in cross-section regressions that span 92 countries for the period … 1960 to 2000, they show that knowledge is a significant determinant of long-term economic growth. In particular, the …

Knowledge can be classified into (i) explicit, which can be easily recorded (e.g., books) and (ii) tacit, which cannot … be always articulated. However, much of this tacit knowledge can be shared. The conversion of tacit knowledge into … explicit knowledge is called externalization. Farmers possess both kinds of knowledge. Scientists often pre-determine ignorance …