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

Agrawal, Ajay - 2013

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/10012459010

The U.S. Patent System in Transition : Policy Innovation and the Innovation Process

Jaffe, Adam B. - 1999

relating to patenting, robust conclusions regarding the empirical consequences for technological innovation of changes in …

Persistent link: https://www.econbiz.de/10012471503

Tracing the Linkages Between Scientific Research and Energy Innovations : A Comparison of Clean and Dirty Technologies

Perrons, Robert K. - 2020

development of new energy technologies (Popp, 2017). Energy innovation tends to consist of a series of partially overlapping …

Persistent link: https://www.econbiz.de/10012481080

Innovation Market Failures and the Design of New Climate Policy Instruments

Armitage, Sarah C.; Bakhtian, Noël; Jaffe, Adam B. - National Bureau of Economic Research - 2023

externalities but also by innovation market failures. This paper maps the economics literature on innovation market failures and …

Persistent link: https://www.econbiz.de/10014337854

Does Scientist Immigration Harm US Science? An Examination of Spillovers

Agrawal, Ajay - 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/10012453197

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

Agrawal, Ajay - 2007

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/10012465834

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

Rosell, Carlos - 2006

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/10012466021

The Effect of Public Funding on Research Output : the New Zealand Marsden Fund

Gush, Jason - 2015

We estimate the impact of participating in the NZ Marsden Fund on research output trajectories, by comparing the subsequent performance of funded researchers to those who submitted proposals but were not funded. We control for selection bias using the evaluations of the proposals generated by...

Persistent link: https://www.econbiz.de/10012457017

Does Knowledge Accumulation Increase the Returns to Collaboration?

Agrawal, Ajay - 2013

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/10012458968

Artificial Intelligence and Scientific Discovery : A Model of Prioritized Search

Agrawal, Ajay; McHale, John; Oettl, Alexander - National Bureau of Economic Research - 2023

We model a key step in the innovation process, hypothesis generation, as the making of predictions over a vast …, they use artificial intelligence (AI) instead. We model innovation as resulting from sequential search over a combinatorial … innovation outcomes of interest - the probability of innovation, expected search duration, and expected profit. We describe …

Persistent link: https://www.econbiz.de/10014337792