Kneller, Richard (contributor); … - 2002 - [Elektronische Ressource]
papers surrounding the measurement
of the stock of frontier technology. This results leads us to suggest that careful … OECD manufacturing industries. These
differences in part reflect the restrictive assumptions made in those papers that …’, American Economic Review, papers and proceedings, 59(2), 29-35.
Barro, R. J., Lee, J-W., (2000). ‘International data on …