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Collaboration, Stars, and the Changing Organization of Science : Evidence from Evolutionary Biology

Agrawal, Ajay K. - 2014

We report a puzzling pair of facts concerning the organization of science. The concentration of research output is declining at the department level but increasing at the individual level. For example, in evolutionary biology, over the period 1980 to 2000, the fraction of citation-weighted...

Persistent link: https://www.econbiz.de/10013062172

University Patenting : Estimating the Diminishing Breadth of Knowledge Diffusion and Consumption

Rosell, Carlos - 2012

The rate of university patenting increased dramatically during the 1980s. To what extent did the knowledge flow patterns associated with public sector inventions change as university administrators and faculty seemingly became more commercially oriented? Using a Herfindahl-type measure of patent...

Persistent link: https://www.econbiz.de/10012755451

Does Scientist Immigration Harm Us Science? An Examination of Spillovers

Agrawal, Ajay K. - 2018

The recruitment of foreign scientists enhances US science through an expanded workforce but could also cause harm by displacing better connected domestic scientists, thereby reducing localized knowledge spillovers. We develop a model in which a sufficient condition for the absence of overall...

Persistent link: https://www.econbiz.de/10012921518

Tax Credits and Small Firm R&D Spending

Agrawal, Ajay K. - 2014

In 2004, Canada changed the eligibility rules for its Scientific Research and Experimental Development (SRED) tax credit, which provides tax incentives for R&D conducted by small private firms. Difference in difference estimates show a seventeen percent increase in total R&D among eligible...

Persistent link: https://www.econbiz.de/10013044985

Birds of a Feather - Better Together? Exploring the Optimal Spatial Distribution of Ethnic Inventors

Agrawal, Ajay K. - 2013

We examine how the spatial and social proximity of inventors affects knowledge flows, focusing especially on how the two forms of proximity interact. We develop a knowledge flow production function (KFPF) as a flexible tool for modeling access to knowledge and show that the optimal spatial...

Persistent link: https://www.econbiz.de/10012754047

Does Knowledge Accumulation Increase the Returns to Collaboration?

Agrawal, Ajay K. - 2014

We conduct the first empirical test of the knowledge burden hypothesis, one of several theories advanced to explain increasing team sizes in science. For identification, we exploit the collapse of the USSR as an exogenous shock to the knowledge frontier causing a sudden release of previously...

Persistent link: https://www.econbiz.de/10013061819

Brain Drain or Brain Bank? The Impact of Skilled Emigration on Poor-Country Innovation

Agrawal, Ajay K. - 2014

The development prospects of a poor country depend in part on its capacity for innovation. The productivity of its …

Persistent link: https://www.econbiz.de/10012751076

Finding Needles in Haystacks : Artificial Intelligence and Recombinant Growth

Agrawal, Ajay K. - 2018

Innovation is often predicated on discovering useful new combinations of existing knowledge in highly complex knowledge …

Persistent link: https://www.econbiz.de/10012920884

Why are Some Regions More Innovative than Others? The Role of Firm Size Diversity

Agrawal, Ajay K. - 2015

interplay of these two localized externalities and their impact on regional innovation. We examine MSA-level patent data during … the period 1975-2000 and find that innovation output is higher where large and small labs coexist. The finding is robust …

Persistent link: https://www.econbiz.de/10013037282

Slack Time and Innovation

Agrawal, Ajay K. - 2015

The extant literature linking slack time to innovation focuses on how slack time facilitates creative activities such … are less creative but still important for innovation, namely mundane, execution-oriented tasks. First, we document the …, we report timing and project type evidence consistent with the causal interpretation that slack time drives innovation …

Persistent link: https://www.econbiz.de/10013023339