Griliches, Zvi <br/><br/>
Patents, R&D, and the private value of knowledge : :  explorations in the economics of technological change : final report 

 - 34 p. 
 - NSF ; PRA-82009 .
<br/><br/> 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 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patentes<br/>Custo<br/>setor industrial<br/>pesquisa aplicada<br/>desenvolvimento<br/>Avaliação
<br/><br/><label>Universal Decimal Class. No.: </label>347.77  / G858p