Cardoso, Ana Rute; Guimarães, Paulo; Zimmermann, Klaus F. - 2010
of research in economics. Our findings indicate that Europe is catching up with the US but, in terms of influential … quantity and quality indicators tell us the same story? We concentrate on trends taking place since the beginning of the 1990s … research, the US maintains a dominant position. The main continental European countries, Germany, France, Italy and Spain …