Mezzanotti, Filippo; Simcoe, Timothy S. - National Bureau of Economic Research - 2023
from innovation. In this paper, we revisit that question using a nationally representative sample of firms over the period … of the economics of innovation. There are five main findings. First, while patenting firms are relatively uncommon in the … economy, they account for an overwhelming share of R&D spending. Second, firms consider utility patents less important on …