TY  - GEN
AU  - Griliches,Zvi
AU  - Nadiri,Ishaq
TI  - Patents, R&D, and the private value of knowledge :: explorations in the economics of technological change : final report
T2  - NSF ; PRA-82009
PY  - 1982///
CY  - Springfield
PB  - NTIS
KW  - Patentes
KW  - Custo
KW  - Br
KW  - setor industrial
KW  - pesquisa aplicada
KW  - desenvolvimento
KW  - Avaliação
N2  - This report describes a study to explore the potential contribution of newly available patent data in order to understand the processes of technological change; relate the quality of aggregate total factor produtivity data (collected by a survey) to estimate the contribution of research and development (R&D) to the aggregate industry or economy-wide levels; and stimulate interaction among researchers, using the National Bureau of Economic Research (NBER) resources, via seminars, workshops, and a special conference. It was found that patent counts can serve as a useful indicator of inventive activity because of their relatively high correlation with R&D expenditures and their significant impact on the stock market's evaluation of the firm's economic prospects. The study also indicated that R&D contributed significantly to productivity growth, both at the firm and industrial level, during 1958-72 but that no significant effects were found during 1973-76
ER  -