Researchers studying innovation increasingly use indicators based on patent citations. However, it is well known that not all citations originate from applicants - patent examiners contribute to citations listed in issued patents - and that this could complicate interpretation of findings in...

This paper examines the diversity of the types of links of firms to science and their effect on innovation performance for a sample of Belgian firms. While at the industry level links to science are highly related to the R&D intensity of the sector, we show that there exists considerable...