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Hall, Bronwyn H; Trajtenberg, Manuel - National Bureau of Economic Research (NBER) - 2004

This paper asks the question: Can we see evidence of General Purpose Technologies in patent data? Using data on three million US patents granted between 1967 and 1999, and their citations received between 1975 and 2002, we construct a number of measures of GPTs, including generality, number of...

Persistent link: https://www.econbiz.de/10004976956

Inventing in the Shadow of the Patent System: Evidence from 19th-Century Patents and Prizes for Technological Innovations

Khan, B. Zorina - National Bureau of Economic Research (NBER) - 2014

. Accordingly, this paper offers an empirical comparison of patents in relation to the award of prizes for technological innovation … unpredictable, and was unrelated to such proxies for the productivity of the innovation as inventive capital or the commercial …

Persistent link: https://www.econbiz.de/10011096584

Of Time and Space: Technological Spillovers among Patents and Unpatented Innovations during Early U.S. Industrialization

Khan, B. Zorina - National Bureau of Economic Research (NBER) - 2014

The paper explores the role of institutional mechanisms in generating technological knowledge spillovers. The estimation is over panel datasets of patent grants, and unpatented innovations that were submitted for prizes at the annual industrial fairs of the American Institute of New York, during...

Persistent link: https://www.econbiz.de/10011096587

Are Patent Fees Effective at Weeding out Low-quality Patents?

Jaffe, Adam; Rassenfosse, Gaétan de - National Bureau of Economic Research (NBER) - 2014

The paper investigates whether patent fees are an effective mechanism to deter the filing of low-quality patent applications. The study analyzes the effect of the Patent Law Amendment Act of 1982, which resulted in a substantial increase in patenting fees at the U.S. Patent and Trademark Office,...

Persistent link: https://www.econbiz.de/10011105939

Killing the Golden Goose? The Decline of Science in Corporate R&D

Arora, Ashish; Belenzon, Sharon; Patacconi, Andrea - National Bureau of Economic Research (NBER) - 2015

Scientific knowledge is believed to be the wellspring of innovation. Historically, firms have also invested in research … to fuel innovation and growth. In this paper, we document a shift away from scientific research by large corporations … innovation. Large firms appear to value the golden eggs of science (as reflected in patents) but not the golden goose itself (the …

Persistent link: https://www.econbiz.de/10011159880

New Ideas in Invention

Packalen, Mikko; Bhattacharya, Jay - National Bureau of Economic Research (NBER) - 2015

A key decision in research is whether to try out new ideas or build on more established ideas. In this paper, we evaluate which type of work is more likely to spur further invention. When recent advances create superior opportunities for invention, their adoption as research inputs in the...

Persistent link: https://www.econbiz.de/10011159886

Cities and Ideas

Packalen, Mikko; Bhattacharya, Jay - National Bureau of Economic Research (NBER) - 2015

Faster technological progress has long been considered a key potential benefit of agglomeration. Physical proximity to others may help inventors adopt new ideas in their work by increasing awareness about which new ideas exist and by enhancing understanding of the properties and usefulness of...

Persistent link: https://www.econbiz.de/10011159889

Age and the Trying Out of New Ideas

Packalen, Mikko; Bhattacharya, Jay - National Bureau of Economic Research (NBER) - 2015

Older scientists are often seen as less open to new ideas than younger scientists. We put this assertion to an empirical test. Using a measure of new ideas derived from the text of nearly all biomedical scientific articles published since 1946, we compare the tendency of younger and older...

Persistent link: https://www.econbiz.de/10011159890

Localized and Biased Technologies: Atkinson and Stiglitz's New View, Induced Innovations, and Directed Technological Change

Acemoglu, Daron - National Bureau of Economic Research (NBER) - 2014

. After linking these ideas to the induced innovation literature of the 1960s and the more recent directed technological …

Persistent link: https://www.econbiz.de/10011262792

Ethnic Complementarities after the Opening of China: How Chinese Graduate Students Affected the Productivity of Their Advisors

Borjas, George; Doran, Kirk B.; Shen, Ying - National Bureau of Economic Research (NBER) - 2015

The largest and most important flow of scientific talent in the world is the migration of international students to the doctoral programs offered by universities in industrialized countries. This paper uses the opening of China in 1978 to estimate the causal effect of this flow on the...

Persistent link: https://www.econbiz.de/10011262918