This study identifies and measures the returns to regional, national and international knowledge sourcing for innovation in firms with different productivity levels. We develop and estimate a model on two distinct samples using data from the 17,859 most innovative firms during 2002-2014. We...

This study identifies and measures the returns to regional, national and international knowledge sourcing for innovation in firms with different productivity levels. We develop and estimate a model on two distinct samples using data from the 17,859 most innovative firms during 2002-2014. We...

A rich literature links knowledge inputs with innovative outputs. However, most of what is known is restricted to manufacturing. This paper analyzes whether the three aspects involving innovative activity - R&D; innovative output; and productivity - hold for knowledge intensive services....