“…By analyzing the patent data, researchers have showed geographical knowledge flow, especially international knowledge flow across countries (JAFFE et al, 1993;JAFFE & TRAJTENBERG, 1999). Researchers also investigated the spill-over impacts of individual research institutes (JAFFE et al, 1998), various policy and management implications on innovation systems (MEYER, 2002), institutional relations (MEYER et al, 2003), and knowledge transfer and diffusion (CHEN & HICKS, 2004). Moreover, several studies assessed the relationship between science and technology by using non-patent citation data in US patent MEYER, 2000b;TIJSSEN, 2001TIJSSEN, , 2002.…”