particular we show that: as predicted by evolutionary theory, inventor productivity is a positive determinant of invention value … productivity. We examine mobility in two dimensions: from firm to firm (inter-firm) and from one technical field to another. We … exploit data on patents filed by inventors from five countries (France, the UK, Germany, the US and Japan) in the US Patent …

relationship between inventive activity and productivity at the level of U.S. metropolitan economies, using a patents database that … with and Granger causes higher productivity in metropolitan areas. A standard deviation increase in patents predicts a 6 … percent increase in productivity over 10 years. Higher-quality patents enhance the effect. We attempt to identify a cross …

microdata. We find that invention and manufacturing developed similarly in cities closer to and farther from universities in the …

on the determinants of inventor productivity, the relationship between inventor mobility and inventor productivity, and …