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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

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

Agrawal, Ajay K.; McHale, John; Oettl, Alexander - National Bureau of Economic Research (NBER) - 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/10011271397

Why Stars Matter

Agrawal, Ajay K.; McHale, John; Oettl, Alex - National Bureau of Economic Research (NBER) - 2014

The growing peer effects literature pays particular attention to the role of stars. We decompose the causal effect of hiring a star in terms of the productivity impact on: 1) co-located incumbents and 2) new recruits. Using longitudinal university department-level data we report that hiring a...

Persistent link: https://www.econbiz.de/10010796650

Gone But Not Forgotten: Labor Flows, Knowledge Spillovers, and Enduring Social Capital

Agrawal, Ajay K.; Cockburn, Iain M.; McHale, John - National Bureau of Economic Research (NBER) - 2003

It is well known that patent citations occur disproportionately between patents issued to inventors living in the same location, which has been taken as evidence of geographically localized knowledge spillovers. In this study, we find that patent citations also occur disproportionately often in...

Persistent link: https://www.econbiz.de/10005085134

Gone but not Forgotten : Knowledge Flows, Labor Mobility, and Enduring Social Relationships

Agrawal, Ajay K.; Cockburn, Iain M.; McHale, John - 2008

We examine the role of social relationships in facilitating knowledge flows by estimating the flow premium captured by a mobile inventor's previous location. Once an inventor has moved, they are gone - but are they forgotten? We find that knowledge flows to an inventor's prior location are...

Persistent link: https://www.econbiz.de/10014051106

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

Agrawal, Ajay K.; McHale, John; Kapur, Devesh - National Bureau of Economic Research (NBER) - 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/10005777387

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

Agrawal, Ajay K.; McHale, John; Kapur, Devesh - National Bureau of Economic Research (NBER) - 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/10005778696

Birds of a Feather - Better Together? How Co-Ethnicity and Co-Location Influence Knowledge Flow Patterns

Agrawal, Ajay K.; Kapur, Devesh; McHale, John - 2008

We estimate a knowledge flow production function using patent data associated with U.S. inventors of Indian origin. Our results suggest that co-location and co-ethnicity substitute for rather than complement one another in terms of facilitating knowledge flows. Our model shows this is a...

Persistent link: https://www.econbiz.de/10014026886

Stars as catalysts : an event-study analysis of the impact of star-scientist recruitment on local research performance in a small open economy

McHale, John; Harold, Jason; Mei, Jen-Chung; … - In: Journal of economic geography 23 (2023) 2, pp. 343-369

Persistent link: https://www.econbiz.de/10014314574

Finding needles in haystacks : artificial intelligence and recombinant growth

Agrawal, Ajay; McHale, John; Oettl, Alexander - In: The economics of artificial intelligence : an agenda, (pp. 149-174). 2019

Persistent link: https://www.econbiz.de/10012127677