A new model of economic growth introduces the knowledge filter between new knowledge and economically useful knowledge. It identifies both new ventures and incumbent firms as the mechanisms that penetrate the knowledge filter. Recent empirical work has shown that new firms are more proficient at...

An important new literature on gross employment flows has produced a great outpouring of stylized facts. In this paper we examine one aspect of this literature through the lens of dynamic models and theories of industrial evolution. We extend the Davis and Haltiwanger methodology for analysis of...

The intellectual breakthrough contributed by the new growth theory was the recognition that investments in knowledge and human capital endogenously generate economic growth through the spillover of knowledge. Endogenous growth theory does not explain how or why spillovers occur. The missing link...