Lööf, Hans; Heshmati, Almas - 2001 - First Version May 2001, Revised October 2001, March 2002, December 2002
The objective of this study is to investigate the sensitivity of the estimated relationship between innovation and firm … performance. In doing so, we rely on a knowledge production function approach and carry out comparisons in a number of respects … the same data sources, an identical model but different data sources, different classifications of firm performance and …