TY - UNPB
T1 - Patents, Citations and Innovations
T2 - Tracing the Links
AU - Trajtenberg, Manuel
PY - 1987/12
Y1 - 1987/12
N2 - The goal is to tackle anew the main problems encountered in using patent data in economic research, namely, the large variance in the value of patents, and the difficulties in matching patents with economic categories. The first is addressed with the aid of patent citations, the second with computerized search techniques for large databases. The proposed solutions are applied to the case of Computed Tomography (CT) Scanners, a pathbreaking innovation in medical technology. The main findings are that patents weighted by citations are highly correlated with the value of innovations, and that important innovations generate further innovative activity (R & D), and hence bring about down-the-line patents.
AB - The goal is to tackle anew the main problems encountered in using patent data in economic research, namely, the large variance in the value of patents, and the difficulties in matching patents with economic categories. The first is addressed with the aid of patent citations, the second with computerized search techniques for large databases. The proposed solutions are applied to the case of Computed Tomography (CT) Scanners, a pathbreaking innovation in medical technology. The main findings are that patents weighted by citations are highly correlated with the value of innovations, and that important innovations generate further innovative activity (R & D), and hence bring about down-the-line patents.
U2 - 10.3386/w2457
DO - 10.3386/w2457
M3 - מסמך עבודה
T3 - Working paper series (National Bureau of Economic Research)
BT - Patents, Citations and Innovations
PB - National Bureau of Economic Research
CY - Cambridge, Massachusetts
ER -
