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  • 2022
  • Working Paper

Innovation on Wings: Nonstop Flights and Firm Innovation in the Global Context
By: Dany Bahar, Prithwiraj Choudhury, Do Yoon Kim and Wesley W. Koo
We study whether, when, and how better connectivity through nonstop flights leads to positive innovation outcomes for firms in the global context. Using unique data of all flights emanating from 5,015 airports around the globe from 2005 to 2015 and exploiting a...  View Details
Keywords: Nonstop Flights; Collaborative Innovation and Invention; Patents; Research and Development; Air Transportation Industry
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  • June 2022
  • Article

The Use and Misuse of Patent Data: Issues for Finance and Beyond
By: Josh Lerner and Amit Seru
Patents and citations are powerful tools for understanding innovation increasingly used in financial economics (and management research more broadly). Biases may result, however, from the interactions between the truncation of patents and citations and the changing...  View Details
Keywords: Patents; Analytics and Data Science; Corporate Finance; Research
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  • May 2022
  • Article

How Status of Research Papers Affects the Way They Are Read and Cited
By: Misha Teplitskiy, Eamon Duede, Michael Menietti and Karim R. Lakhani
Although citations are widely used to measure the influence of scientific works, research shows that many citations serve rhetorical functions and reflect little-to-no influence on the citing authors. If highly cited papers disproportionately attract rhetorical...  View Details
Keywords: Metrics; Influence; Status; Citations; Science; Measurement and Metrics; Research; Perception
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  • 2021
  • Working Paper

Financial Innovation in the 21st Century: Evidence from U.S. Patents
By: Josh Lerner, Amit Seru, Nick Short and Yuan Sun
We develop a unique dataset of 24 thousand U.S. finance patents granted over the last two decades to explore the evolution and production of financial innovation. We use machine learning to identify the financial patents and extensively audit the results to ensure...  View Details
Keywords: Banking; Investment Banks; Regulation; Banks and Banking; Information Technology; Governing Rules, Regulations, and Reforms; Finance; Innovation and Invention
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  • March 2020
  • Article

Do Managers Matter? A Natural Experiment from 42 R&D Labs in India
By: Prithwiraj Choudhury, Tarun Khanna and Christos A. Makridis
We exploit plausibly exogenous variation in the staggered entry of new managers into India’s 42 public R&D labs between 1994 and 2006 to study how alignment between the CEO and middle-level managers affect research productivity. We show that the introduction of new lab...  View Details
Keywords: Incentives; Innovation; Productivity; Management; Alignment; Research and Development; Innovation and Invention; Performance Productivity; India
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  • Article

Extending the Role of Headquarters Beyond the Firm Boundary: Entrepreneurial Alliance Innovation
By: Jaeho Kim and Andy Wu
Prior research on corporate headquarters (CHQ) characteristics identifies the impact of CHQ location and composition on the innovation outcomes of internal subsidiaries. However, given that external strategic alliances with high-tech entrepreneurial firms represent a...  View Details
Keywords: Alliance; Innovation; Corporate Headquarters; Geographic Proximity; Entrepreneurship; Corporate Strategy; Alliances; Joint Ventures; Innovation and Invention; Business Headquarters; Geographic Location
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  • November 2018
  • Article

Disruptive Innovation: An Intellectual History and Directions for Future Research
By: Clayton M. Christensen, Rory McDonald, Elizabeth J. Altman and Jonathan E. Palmer
The concept of disruptive innovation has gained considerable currency among practitioners despite widespread misunderstanding of its core principles. Similarly, foundational research on disruption has elicited frequent citation and vibrant debate in academic circles,...  View Details
Keywords: Innovation Metrics; Systemic Industries; Technology Trajectories; Disruptive Innovation; Theory; History; Competitive Strategy; Research
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  • August 2018
  • Article

Growth Through Heterogeneous Innovations
By: Ufuk Akcigit and William R. Kerr
We build a tractable growth model where multi-product incumbents invest in internal innovations to improve their existing products, while new entrants and incumbents invest in external innovations to acquire new product lines. External and internal innovations generate...  View Details
Keywords: Endogenous Growth; Innovation; Citations; Scientists; Entrepreneurs; External; Internal; Patents; Innovation Strategy; Entrepreneurship; Economic Growth; Research and Development; Science
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  • December 2017 (Revised January 2019)
  • Case

In the Eye of a Geopolitical Storm: South Korea's Lotte Group, China and the U.S. THAAD Missile Defense System (A)
By: Andy Zelleke and Brian Tilley
By late 2016 and early 2017, Lotte Group, a South Korean chaebol (large family-controlled business group) had become embroiled not only in the domestic political turmoil surrounding President Park Geun-hye, but also—uncomfortably—in a four-country geopolitical storm. ...  View Details
Keywords: Corporate Social Responsibility; Politics; Corporate Social Responsibility and Impact; National Security; International Relations; Decision Making; Government and Politics; Leadership; South Korea; China; Japan
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  • 2017
  • Working Paper

The Use and Misuse of Patent Data: Issues for Corporate Finance and Beyond
By: Josh Lerner
Patents and citations are powerful tools for understanding innovative activity inside the firm and are increasingly used in corporate finance research. But due to the complexities of patent data collection and the changing spatial and industry composition of innovative...  View Details
Keywords: Patents; Analytics and Data Science; Corporate Finance; Research; Problems and Challenges
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  • Article

The Career Effects of Scandal: Evidence from Scientific Retractions
By: Pierre Azoulay, Alessandro Bonatti and Joshua Lev Krieger
We investigate how the scientific community's perception of a scientist's prior work changes when one of his articles is retracted. Relative to non-retracted control authors, faculty members who experience a retraction see the citation rate to their earlier,...  View Details
Keywords: Reputation; Perception; Status and Position; Outcome or Result
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  • May 2017
  • Article

Immigration and the Rise of American Ingenuity
By: Ufuk Akcigit, John Grigsby and Tom Nicholas
We build on the analysis in Akcigit, Grigsby, and Nicholas (2017) by using U.S. patent and census data to examine the relationship between immigration and innovation. We construct a measure of foreign born expertise and show that technology areas where immigrant...  View Details
Keywords: Immigration; Innovation and Invention; Experience and Expertise; Wages; United States
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  • 2017
  • Working Paper

The Rise of American Ingenuity: Innovation and Inventors of the Golden Age
By: Ufuk Akcigit, John Grigsby and Tom Nicholas
We examine the golden age of U.S. innovation by undertaking a major data collection exercise linking inventors from historical U.S. patents to Federal Censuses between 1880 and 1940 and to regional economic aggregates. We provide a theoretical framework to motivate the...  View Details
Keywords: Economic Development; Patents; Economic Growth; Innovation and Invention; Demographics
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  • 2016
  • Working Paper

Innovation Network
By: Daron Acemoglu, Ufuk Akcigit and William Kerr
Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its strength. Past innovation...  View Details
Keywords: Innovation; Growth; Networks; Patents; Industry Growth; Technology Industry
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  • October 11, 2016
  • Article

Innovation Network
By: Daron Acemoglu, Ufuk Akcigit and William R. Kerr
Technological progress builds upon itself, with the expansion of invention in one domain propelling future work in linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its strength. Past innovation...  View Details
Keywords: Innovation and Invention; Networks; Patents
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  • March 2016
  • Article

An Analysis of Firms' Self-reported Anticorruption Efforts
By: Paul M. Healy and George Serafeim
We use Transparency International's ratings of self-reported anticorruption efforts for 480 corporations to analyze factors underlying the ratings. Our tests examine whether these forms of disclosure reflect firms' real efforts to combat corruption or are cheap talk....  View Details
Keywords: Corruption; Corporate Performance; Growth; Disclosure; Disclosure Strategy; Sustainability; Crime and Corruption; Corporate Disclosure; Performance; Sales
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  • 2015
  • Working Paper

Financial Patent Quality: Finance Patents After State Street
By: Josh Lerner, Andrew Speen, Mark Baker and Ann Leamon
In the past two decades, patents of inventions related to financial services ("finance patents"), as well as litigation around these patents, have surged. One of the repeated concerns voiced by academics and practitioners alike has been about the quality of these...  View Details
Keywords: Patents; Lawsuits and Litigation; Finance
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  • November 2013
  • Article

Investment Cycles and Startup Innovation
By: Ramana Nanda and Matthew Rhodes-Kropf
We find that VC-backed firms receiving their initial investment in hot markets are more likely to go bankrupt, but conditional on going public are valued higher on the day of their IPO, have more patents, and have more citations to their patents. Our results suggest...  View Details
Keywords: Innovation; Market Cycles; Financing Risk; Risk and Uncertainty; Venture Capital; Investment; Innovation and Invention
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  • 2014
  • Working Paper

Bridging Science and Technology Through Academic-Industry Partnerships
By: Sen Chai and Willy C. Shih
Scientific research and its translation into commercialized technology is a driver of wealth creation and economic growth. Partnerships to foster the translational processes from public research organizations, such as universities and hospitals, to private firms are a...  View Details
Keywords: Innovation; Firm Performance; Public-private Partnership Funding; Translational Research; Small And Medium Enterprises; Partners and Partnerships; Public Sector; Private Sector; Performance; Science-Based Business; Innovation and Invention
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  • 2012
  • Working Paper

Author-Level Eigenfactor Metrics: Evaluating the Influence of Authors, Institutions and Countries within the SSRN community
By: Jevin D. West, Michael C. Jensen, Ralph J. Dandrea, Gregg Gordon and Carl T. Bergstrom
In this paper, we show how the Eigenfactor® score, originally designed for ranking scholarly journals, can be adapted to rank the scholarly output of authors, institutions, and countries based on author-level citation data. Using the methods described herein, we...  View Details
Keywords: Body of Literature; Measurement and Metrics; Networks; Rank and Position; Research; Motivation and Incentives
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