Editors' Introduction -- Analysis of data sources and network analysis -- Advancement of methodology for research assessment -- Science systems and research policy -- New indicators for research assessment -- Advancement of methodology for patent analysis -- Patent system, patents and economics

Purpose Scholars often aim to conduct high quality research and their success is judged primarily by peer reviewers. Research quality is difficult for either group to identify, however and misunderstandings can reduce the efficiency of the scientific enterprise. In response, we use a novel term...