Showing 1 - 10 of 10
This paper documents a shift in the nature of innovation in the information technology (IT) industry. Using … comprehensive data on all IT patents granted by the USPTO from 1983-2004, we find strong evidence of a change in IT innovation that … is systematic, substantial, and increasingly dependent on software. This change in the nature of IT innovation has had …
Persistent link: https://www.econbiz.de/10009209772
Persistent link: https://www.econbiz.de/10012035067
Persistent link: https://www.econbiz.de/10001643649
major changes in the American innovation ecosystem over the past century. The past three decades have been marked by a …
Persistent link: https://www.econbiz.de/10012479842
of innovation and imitation, we explore how inventive capability affects a firm's R&D investments, and thus whether and … innovation and the division of innovative labor among US manufacturing firms, we find that high capability firms tend to use …
Persistent link: https://www.econbiz.de/10012480704
of innovation and imitation, we explore how inventive capability affects a firm's R&D investments, and thus whether and … innovation and the division of innovative labor among US manufacturing firms, we find that high capability firms tend to use …
Persistent link: https://www.econbiz.de/10012911085
Persistent link: https://www.econbiz.de/10012796999
Technical progress increasingly relies on the use of scientific knowledge. But if much of this knowledge is in the public domain, can it be a source of private value? We find that average private returns to using public science are small, especially in crowded technical fields, consistent with...
Persistent link: https://www.econbiz.de/10012496086
major changes in the American innovation ecosystem over the past century. The past three decades have been marked by a …
Persistent link: https://www.econbiz.de/10012869221
Do large firms produce more valuable inventions, and if so, why? After confirming that large firms indeed produce more valuable inventions, we consider two possible sources: a superior ability to invent, or a superior ability to extract value from their inventions. We develop a simple model that...
Persistent link: https://www.econbiz.de/10013362008