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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 Impact of Regulation on Innovation

Aghion, Philippe; Bergeaud, Antonin; Van Reenen, John - National Bureau of Economic Research - 2021

Does regulation affect the pace and nature of innovation and if so, by how much? We build a tractable and quantifiable … sharp reduction in the firm's innovation response to exogenous demand shocks for firms just below the regulatory threshold …. We then quantitatively fit the parameters of the model to the data, finding that innovation at the macro level is about 5 …

Persistent link: https://www.econbiz.de/10012482599

Of Mice and Academics : Examining the Effect of Openness on Innovation

Murray, Fiona - 2009

Scientific freedom and openness are hallmarks of academia: relative to their counterparts in industry, academics maintain discretion over their research agenda and allow others to build on their discoveries. This paper examines the relationship between openness and freedom, building on recent...

Persistent link: https://www.econbiz.de/10012463828

The Causal Effects of Competition on Innovation : Experimental Evidence

Aghion, Philippe - 2014

-by-step innovation. Innovations result from costly R&D investments and move technology up one step. Competition is inversely measured by …-and-neck. All these results are consistent with the predictions of step-by-step innovation models …

Persistent link: https://www.econbiz.de/10012458677

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

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

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

A Year Older, A Year Wiser (and Farther from Frontier) : Invention Rents and Human Capital Depreciation

Aghion, Philippe; Akcigit, Ufuk; Hyytinen, Ari; … - National Bureau of Economic Research - 2022

We look at how the arrival of an invention affects wage returns and probability of moving out of employment for white- and blue-collar coworkers of the inventor. First results suggest that older workers are hurt by the arrival of an invention. This negative effect disappears when we control for...

Persistent link: https://www.econbiz.de/10013172162

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

Agrawal, Ajay - 2008

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/10012464057