Progress in our understanding of the role of knowledge in the economy, based on Nelson and Winter's book published in 1982, has been mixed. It has been greatest when their concepts have been enriched by empirical evidence, often coming from outside evolutionary economics. It has been least when...

This paper explores ongoing debates about the role that codified forms of knowledge play in fostering firms' and countries' innovative performance. It aims to provide an empirical exploration of the use of codified sources of information for innovation at the sectoral level. Despite considerable...

I examine the relationship between the characteristics of firm knowledge in terms of capital, diversity and relatedness, and productivity. Panel data regression models suggest that unlike knowledge diversity, knowledge capital and knowledge relatedness explain a substantial share of the variance...

Concerns about the proliferation of biological weapons and the threat posed by bioterrorism have assumed greater political prominence in recent years. In response, governments are actively attempting to frustrate the diffusion of technologies, relevant to the production of biological weapons, to...