“…By contrast, studies conducted on a national scale have tended to focus on technological specialization and economic performance (e.g. Archibugi & Pianta, 1992a, 1992bAttaran, 1986;Cantwell & Vertova, 2004;Evangelista & Vezzani, 2010;Hasan & Tucci, 2010;Mancusi, 2001;Pianta & Meliciani, 1996). Others have indicated that larger countries tend to diversify their technological activities, whereas smaller economies focus on specific fields (Archibugi & Pianta, 1992a, 1992bCantwell & Vertova, 2004).…”