Triadic patents minimise home bias effects in studies that focus on patent counts as a measure of innovative activity. Yet, biases in qualitative patent indicators have been largely neglected. This article advocates that forward patent citations, and triadic citations in particular, can...

This paper examines the idea that the USA has outshined Europe in the race for new medicines as a result of a flight of business R&D expenditure to the USA. It adopts a methodology that accounts for R&D price inflation, considers the role of both ‘performed' R&D and ‘extra-mural' R&D, and...

Lanjouw and Schankerman (2004) proposed that patent quality is a key driver of R&D productivity but did not find supportive evidence for pharmaceuticals. This study revisits this hypothesis using OECD data for the period 1980-2000. It extends the literature in three ways: it develops new R&D...