Using patent citation data for the U.S., we test whether knowledge spillovers in biotechnology are sensitive to distance. Controlling for self-citation by inventor, assignee and examiner, cohort-based regression analysis shows that spillovers are local but that distance is becoming less...

While it is clear that there has been a "regional inversionʺ in American patent activity over the past 25 years (i.e. relative rise of the Northwest and Southwest at the expense of the traditional invention hotbeds of the Northeast and Midwest), the reason is still open to speculation....

Few systematic economic evaluations have been carried out on patent system to better inform policy choices. This report, which covers a range of areas, and highlights some issues that policy makers should address in the near future, including markets for technology, patenting by public reserach...

This dataset provides the number of inventions (simple patent families) developed by country's inventors, independent of the jurisdictions where patent protection is sought (i.e. all known patent families worldwide are considered). The indicator is disaggregated by: Inventor country, fractional...