This analysis addresses the question ofwhetherthe influence of scientific innovation in large corporations is declining.Focus is placed on the growth of research innovations into market-readyproducts and on imitative technologies. Data were collected in 2001-2002 from39 detailed interviews with...

A large empirical literature has documented differences in Schumpeterian profits, both among firms in single industries and between firms in different industries. Theorists have proposed various institutional and strategic factors to account for such differences but have had relatively little to...