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Ashish Arora
Duke University
194Publications
43H-index
8,557Citations
Publications 194
Newest
Published on Sep 1, 2019in Applied Mathematical Modelling 2.84
Abhishek Painuly1
Estimated H-index: 1
(PTU: Punjab Technical University),
Ashish Arora2
Estimated H-index: 2
(PTU: Punjab Technical University)
Abstract The propagation of Rayleigh wave along the free surface of a composite porous half-space saturated by two immiscible fluids is studied. A complex valued dispersion equation is obtained and solved numerically to examine phase speed and attenuation of Rayleigh wave propagating in the medium. Comparative study of the behavior of Rayleigh wave in saturated and unsaturated media is conducted by considering a porous rock composed of shaley sandstone and clay content with pores containing wate...
Published on May 1, 2019in Nature 43.07
Ashish Arora43
Estimated H-index: 43
,
Ashish Arora + 1 AuthorsAndrea Patacconi6
Estimated H-index: 6
Corporate research in the life sciences endures, despite diminishing in other fields of science. Corporate research in the life sciences endures, despite diminishing in other fields of science.
Published on Apr 1, 2019in Industrial and Corporate Change 1.82
Ashish Arora43
Estimated H-index: 43
(Duke University),
Sharon Belenzon12
Estimated H-index: 12
(Duke University),
Andrea Patacconi6
Estimated H-index: 6
(UEA: University of East Anglia)
This article reviews evidence on the changing structure of the US innovation ecosystem and then develops a simple model of the rise and fall of the large corporate lab. We suggest that the growth of American universities allowed at first the formation of large corporate labs by training scientists to work in industrial labs. Subsequently, however, start-up invention spurred by university research provided an increasingly attractive alternative to internal research, leading to the demise of the l...
Published on Sep 1, 2018in National Bureau of Economic Research
Ashish Arora43
Estimated H-index: 43
,
Wesley M. Cohen33
Estimated H-index: 33
,
Colleen M. Cunningham8
Estimated H-index: 8
We study how the inventive capability of a firm conditions its participation in a division of innovative labor. Capable firms are, by definition, able to invent; for them, external inventions substitute for their own R&D. However, external knowledge is an input into internal invention, and thus, more valuable to firms with inventive capability. Using a simple model of innovation and imitation, we explore how inventive capability affects a firm’s R&D investments, and thus whether and how it innov...
Published on Aug 1, 2018
Will Mitchell49
Estimated H-index: 49
,
Ashish Arora43
Estimated H-index: 43
+ 2 AuthorsMaria Elena Vidal
The bio-pharmaceutical industry has been an important empirical setting for strategy research since the 1970s, when it was noted to outperform other industries due to its firms’ diversification strategies and to barriers to entry that arise from regulatory requirements and other characteristics of the industry. Since then, scholars have examined multiple issues of strategy and performance in the sector, with the bio-pharma industry continuing to be a popular empirical context for testing theoret...
Published on May 1, 2018in Journal of Economic Geography 3.36
Ashish Arora43
Estimated H-index: 43
(Duke University),
Sharon Belenzon12
Estimated H-index: 12
(Duke University),
Honggi Lee (Duke University)
Spillover of knowledge is considered to be an important cause of agglomeration of inventive activity. Many studies argue that knowledge spillovers are localized based on the observation that patents tend to cite nearby patents disproportionately. Specifically, patent citations are typically interpreted as marking the transmission of knowledge from the cited invention to the citing invention. The localization of patent citations is therefore taken as evidence that such knowledge transmission is a...
Published on Feb 1, 2018in National Bureau of Economic Research
Ashish Arora43
Estimated H-index: 43
(Duke University),
Andrea Fosfuri25
Estimated H-index: 25
(Complutense University of Madrid),
Thomas Rønde13
Estimated H-index: 13
Most technology startups are set up for exit through acquisition by large corporations. In choosing when to sell, startups face a tradeoff. Early acquisition reduces execution errors but later acquisition improves the likelihood of finding a better match since in the early market, there are fewer buyers because early acquisition requires costly absorptive capacity. Moreover, the buyer’s decision to invest in absorptive capacity is related to the startup’s decision about the timing of the exit sa...
Published on Jan 1, 2018in Strategic Management Journal 5.57
Ashish Arora43
Estimated H-index: 43
(Duke University),
Sharon Belenzon12
Estimated H-index: 12
(Duke University),
Andrea Patacconi6
Estimated H-index: 6
(UEA: University of East Anglia)
Research summary: In this article, we document a shift away from science by large corporations between 1980 and 2006. We find that publications by company scientists have declined over time in a range of industries. We also find that the value attributable to scientific research has dropped, whereas the value attributable to technical knowledge (as measured by patents) has remained stable. These trends are unlikely to be driven principally by changes in publication practices. Furthermore, scienc...
Published on Dec 7, 2017in Nature 43.07
Ashish Arora43
Estimated H-index: 43
,
Sharon Belenzon12
Estimated H-index: 12
,
Andrea Patacconi6
Estimated H-index: 6
The withdrawal of large US corporations from research is narrowing the scope of innovation. The withdrawal of large US corporations from research is narrowing the scope of innovation.
Published on Dec 6, 2017
Ashish Arora43
Estimated H-index: 43
,
Sharon Belenzon12
Estimated H-index: 12
,
Andrea Patacconi6
Estimated H-index: 6
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