Publications

2024
Working Paper

Igniting Innovation: Evidence from PyTorch on Technology Control in Open Collaboration

By: Daniel Yue and Frank Nagle

Many companies offer free access to their technology to encourage outside addon innovation, hoping to later profit by raising prices or harnessing the power of the crowd while continuing to steer the direction of innovation. They can achieve this balance by opening... View Details

Keywords: Technological Innovation; Power and Influence; Collaborative Innovation and Invention; Corporate Governance

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

Keywords: ESG (Environmental, Social, Governance) Performance; Investment; Decision Making; Policy; Energy; Green Technology; Technological Innovation; Patents

07 May 2019
News

New book reveals the principles that have helped make digital platforms, including Amazon, Google, and Apple, the world’s most valuable firms

2009
Other Unpublished Work

The Pecora Hearings

By: David Moss, Cole Bolton and Eugene Kintgen

In 1932, in the depths of the Great Depression, the Senate Banking Committee began a much-publicized investigation of the nation's financial sector. The hearings, which came to be known as the Pecora hearings after the Banking Committee's lead counsel Ferdinand... View Details

Keywords: Financial History; Financial Crisis; Financial Markets; Governing Rules, Regulations, and Reforms; Government Legislation; Laws and Statutes; Business and Government Relations; Financial Services Industry

2022
Working Paper

How Do Investors Value ESG?

By: Malcolm Baker, Mark Egan and Suproteem K. Sarkar

Environmental, social, and governance (ESG) objectives have risen to near the top of the agenda for corporate executives and boards, driven in large part by their perceptions of shareholder interest. We quantify the value that shareholders place on ESG using a revealed... View Details

Keywords: Investment; Investment Portfolio; Corporate Social Responsibility and Impact; Business and Shareholder Relations; Environmental Sustainability; Governance; Financial Services Industry; United States

2010
Article

Measuring the Perpetrators and Funders of Typosquatting

By: Tyler Moore and Benjamin Edelman

We describe a method for identifying "typosquatting", the intentional registration of misspellings of popular website addresses. We estimate that at least 938,000 typosquatting domains target the top 3,264 .com sites, and we crawl more than 285,000 of these domains to... View Details

Keywords: Measurement and Metrics; Online Technology; Web

28 Aug 2020
News

Subsidising stability: State employment in China

Rohit Deshpande

Rohit Deshpandé is a Baker Foundation Professor and Sebastian S. Kresge Professor of Marketing, Emeritus at Harvard Business School, where he has been teaching in the Advanced Management Program,... View Details

Keywords: advertising; agribusiness; airline; banking; beauty products; beverage; financial services; home video games; marketing industry; pharmaceuticals; telecommunications; tourism; video games

23 Jul 2007
Research & Ideas

HBS Cases: How Wikipedia Works (or Doesn’t)

lead to an HBS case study, written with professor Karim R. Lakhani, on how Wikipedia governs itself and faces controversial challenges. The elbows are sharp on Wikipedia. It's not cuddly.—Andy McAfee The case offers students View Details

Keywords: by Sean Silverthorne; Publishing

2017
Chapter

Upgrading Regional Competitiveness: What Role for Regional Governments?

By: Christian H.M. Ketels

The literature on the competitiveness of locations has traditionally focused on countries. Over the last decade, however, subnational regions have gained increasing attention both as a level of analysis and as a level for policy making. This chapter aims to explore... View Details

Keywords: Competitiveness; Regions; Economic Policy; Competition; Geographic Scope; Governance; Economy; Policy

Fall 2014
Article

Price Restrictions in Multi-sided Platforms: Practices and Responses

By: Benjamin Edelman and Julian Wright

In connecting buyers to sellers, some two-sided platforms require that sellers offer their lowest prices through the platform, disallowing lower prices for direct sales or sales through competing platforms. In this article, we explore the various contexts where such... View Details

Keywords: Intermediaries; Strategy; Pricing; Vertical Restraints; Price; Distribution Channels

Research Summary

Overview

My focus is empirical financial accounting research, with particular interests in governance, valuation, M&A, and short-sellers. All three of my papers to date fall under the broad heading of “alternative governance mechanisms”—studies of how accounting information is... View Details

Keywords: Mergers and Acquisitions; Corporate Governance; Valuation; Law

Research Summary

Overview

My focus is empirical financial accounting research, with particular interests in governance, valuation, M&A, and short-sellers. All three of my papers to date fall under the broad heading of “alternative governance mechanisms”—studies of how accounting information is... View Details

Keywords: Mergers and Acquisitions; Corporate Governance; Valuation; Law

November 2024 (Revised April 2025)
Case

Cheerful Music

By: Shunyuan Zhang, Feng Zhu and Nancy Hua Dai

Established by Snow Jiang in 2019 in Shenzhen, China, Cheerful Music was a record label company that had created many hit songs in China. “Yi Xiao Jiang Hu,” its most famous hit song, gained billions of views on social media platforms in China and overseas as the... View Details

Keywords: Generative Ai; Music Entertainment; Global Strategy; Business Model; AI and Machine Learning; Market Entry and Exit; Music Industry; China; United Kingdom; London

Educators

Forthcoming
Article

Racial Discrimination and the Social Contract: Evidence from U.S. Army Enlistment During WWII

By: Nancy Qian and Marco Tabellini

This paper documents that the Pearl Harbor attack triggered a sharp increase in volunteer enlistment rates of American men, the magnitude of the increase was smaller for Black men than for white men and the Black-white gap was larger in counties with higher levels of... View Details

Keywords: State Capacity; Institutions; War; History; Race; Prejudice and Bias; Government Administration

February 2022
Supplement

SpartanNash Company: The Amazon Warrants (A)

By: Benjamin C. Esty, E. Scott Mayfield and Daniel Fisher

As of 12/31/21, Amazon held $22 billion of equity and warrants in related companies. In fact, it often requests a free grant of warrants when it enters into a new commercial agreement with a supplier. Over the past 20 years, Amazon has gotten warrants almost 20... View Details

Keywords: Valuation; Value Creation; Consumer Behavior; Negotiation; Distribution; Ownership; Partners and Partnerships; Business Strategy; Equity; Distribution Industry; Food and Beverage Industry; United States

Ted Berk is the Barry and Teri Volpert Fellow and a Senior Lecturer of Business Administration in the Finance Unit at Harvard Business School. He teaches Private Equity Finance in the elective curriculum and Finance I & II in the required curriculum.

Ted... View Details

September 2016
Article

Disproportional Control Rights and the Bonding Role of Debt

By: Aiyesha Dey, Valeri Nikolaev and Xue Wang

We examine the governance role of debt in the context of U.S.-based dual class ownership structures. We hypothesize that the use of debt alleviates the conflict between shareholder classes by balancing the power of controlling insiders. We document that dual class... View Details

Keywords: Dual Class; Private Debt; Debt Covenants; Bonding Mechanisms; Ownership Type; Capital Structure; Borrowing and Debt

Find at Harvard

January 2025
Case

Summer Health: Raising an AI-First Company?

By: Jeffrey J. Bussgang, Sarah Mehta and Maxim Pike Harrell

In October 2023, Summer Health CEO Ellen DaSilva arrived at a defining juncture for her pediatric telehealth startup. Founded in 2021, Summer Health offered parents rapid access to licensed pediatricians via text message. DaSilva, an experienced telehealth executive,... View Details

Keywords: AI and Machine Learning; Technology Adoption; Entrepreneurship; Leadership; Business Startups; Health Care and Treatment; Business Strategy; Product Development; Health Industry; Telecommunications Industry; United States

Educators