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...