Publications
Publications
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- All HBS Web
(62)
- Faculty Publications (18)
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Results
- 2024
- Working Paper
Patent Hunters
By: Lauren Cohen, Umit Gurun, Katie Moon and Paula Suh
Analyzing millions of patents granted by the USPTO between 1976 and 2020, we find a pattern where specific patents only rise to prominence after considerable time has passed. Amongst these late-blooming influential patents, we show that there are key players (patent... View Details
- July 2024
- Article
Buying the Verdict
By: Lauren Cohen and Umit Gurun
We document evidence that firms systematically increase specialized, locally targeted advertising following the firm being taken to trial in that given location, precisely following initiation of the suit. In particular, we use legal actions brought against publicly... View Details
- 2023
- Working Paper
Too Many Managers: The Strategic Use of Titles to Avoid Overtime Payments
By: Lauren Cohen, Umit Gurun and N. Bugra Ozel
We find widespread evidence of firms appearing to avoid paying overtime wages by exploiting a
federal law that allows them to do so for employees termed as “managers” and paid a salary above a
pre-defined dollar threshold. We show that listings for salaried positions... View Details
- February 2022 (Revised April 2022)
- Case
Pushing Past the Boundaries of ESG Investing: AQR Capital Management
By: Lauren H. Cohen, Richard B. Evans, Umit G. Gurun and Quoc H. Nguyen
Cliff Asness was facing a dilemma into how he would plunge his hedge fund into the hottest investment area worldwide—ESG Investing. Founder and managing principal of AQR—one the most storied quantitative hedge funds in the world—Asness knew anything less than a big... View Details
- Article
Internal Deadlines, Drug Approvals, and Safety Problems
By: Lauren Cohen, Umit Gurun and Danielle Li
Absent explicit quotas, incentives, reporting, or fiscal year-end motives, drug approvals around the world surge in December, at month-ends, and before respective major national holidays. Drugs approved before these informal deadlines are associated with significantly... View Details
- October 2020
- Article
IQ from IP: Simplifying Search in Portfolio Choice
By: Huaizhi Chen, Lauren Cohen, Umit Gurun, Dong Lou and Christopher J. Malloy
Using a novel database that tracks web traffic on the SEC’s EDGAR servers between 2004 and 2015, we show that mutual fund managers gather information on a very particular subset of firms and insiders, and their surveillance is very persistent over time. This tracking... View Details
- 2020
- Working Paper
The ESG-Innovation Disconnect: Evidence from Green Patenting
By: Lauren Cohen, Umit G. Gurun and Quoc H. Nguyen
No firm or sector of the global economy is untouched by innovation. In equilibrium, innovators will flock to (and innovation will occur where) the returns to innovative capital are the highest. In this paper, we document a strong empirical pattern in green patent... View Details
- December 2019
- Article
Patent Trolls: Evidence from Targeted Firms
By: Lauren Cohen, Umit Gurun and Scott Duke Kominers
We provide the first large-sample evidence on the behavior and impact of nonpracticing entities (NPEs) in the intellectual-property space. We find that, on average, NPEs appear to behave as opportunistic “patent trolls.” NPEs sue cash-rich firms and target cash in... View Details
- January 2019 (Revised May 2019)
- Case
When Trolls Attack: Carbonite vs. Oasis Research
By: Lauren H. Cohen, Umit G. Gurun, Scott Duke Kominers and Sarah Mehta
This case, set in October 2017, follows Danielle Sheer, general counsel for Carbonite, as she defends the company against claims of patent infringement. It provides a broad overview of the U.S. patent system and explores the impact that non-practicing entities... View Details
- February 2018
- Background Note
Patent Trolling
By: Lauren H. Cohen, Umit G. Gurun, Scott Duke Kominers and George Hou
The U.S. Intellectual Property (IP) Ecosystem is one of the most robust and dynamic in the world—and has been for centuries. The bedrock of this system is the "patent," a legal document that allows its holder exclusive commercialization rights of a part of the "idea... View Details
- Article
"Troll" Check? A Proposal for Administrative Review of Patent Litigation
By: Lauren Cohen, John Golden, Umit Gurun and Scott Duke Kominers
The patent system is commonly justified as a way to promote social welfare and, more specifically, technological progress. For years, however, there has been concern that patent litigation is undermining, rather than furthering, these goals. Particularly in the United... View Details
- Article
Patent Trolling Isn't Dead—It's Just Moving to Delaware
By: Lauren Cohen, Umit G. Gurun and Scott Duke Kominers
- February 2017
- Article
Resident Networks and Corporate Connections: Evidence from World War II Internment Camps
By: Lauren Cohen, Umit Gurun and Christopher J. Malloy
We demonstrate that simply by using the ethnic makeup surrounding a firm’s location, we can predict, on average, which trade links are valuable for firms. Using customs and port authority data on the international shipments of all U.S. publicly traded firms, we show... View Details
- 2017
- Chapter
Empirical Evidence on the Behavior and Impact of Patent Trolls: A Survey
By: Lauren Cohen, Umit Gurun and Scott Duke Kominers
We survey the empirical literature on non-practicing entity (NPE) litigation behavior and its consequences. We document both aggregate trends and cross-sectional differences amongst various types of NPEs. Survey evidence illustrates a number of ways in which NPEs can... View Details
Keywords: Patent Trolls; NPEs; PAEs; Innovation; Patents; Lawsuits and Litigation; Innovation and Invention
- Article
The Growing Problem of Patent Trolling
By: Lauren Cohen, Umit Gurun and Scott Duke Kominers
The last decade has seen a sharp rise in patent litigation in the U.S., with 2015 having one of the highest patent lawsuit counts on record. In theory, this could be a consequence of growth in the commercialization of technology and innovation—patent lawsuits increase... View Details
- Article
Congress Must Look Forward in Reining in Patent Trolls
By: Lauren Cohen, Umit G. Gurun and Scott Duke Kominers
- Blog Post
How U.S. Laws Protecting America's Best Ideas Are Killing Innovation
By: Lauren Cohen, Umit G. Gurun and Scott Duke Kominers
- 2018
- Working Paper
Patent Trolls: Evidence from Targeted Firms
By: Lauren Cohen, Umit G. Gurun and Scott Duke Kominers
We provide the first large-sample evidence on the behavior and impact of non-practicing entities (NPEs) in the intellectual property space. We find that on average, NPEs appear to behave as opportunistic “patent trolls.” NPEs sue cash-rich firms—and target cash in... View Details