Herranz, Neus; Ruiz-Castillo, Javier - C.E.P.R. Discussion Papers - 2011
This paper investigates the citation impact of three large geographical areas -- the U.S., the European Union (EU), and the rest of the world (RW) -- at different aggregation levels. The difficulty is that 42% of the 3.6 million articles in our Thomson Scientific dataset are assigned to several...