Publications

April 2010
Article

Low-energy Limit for Tunnelling Subject to an Eckart Potential Barrier

By: Samuel H Lipoff and Dudley R Herschbach

For two-body s-wave collisions subject to tunnelling though an Eckart potential barrier, cross-sections and rate coefficients in the low-energy regime can be evaluated in analytic form. These provide criteria for approach to the Wigner limit and a generic plot... View Details

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January 2009 (Revised May 2011)
Case

China Mobile's Rural Communications Strategy

By: William C. Kirby, F. Warren McFarlan, G.A. Donovan and Tracy Manty

China Mobile was the world's leading mobile communications service provider with over 400 million customers. In some cities, its penetration rate was over 100%. With such huge successes, Chairman Wang Jianzhou was exploring ways to expand its customer base. Nearly... View Details

Keywords: Communication Technology; Mobile and Wireless Technology; Investment; Rural Scope; Strategy; Growth and Development Strategy; Corporate Social Responsibility and Impact; Business and Government Relations; Telecommunications Industry; China

April 2013
Teaching Plan

Barclays and the LIBOR Scandal

By: Clayton S. Rose and Aldo Sesia

In the summer of 2012, Barclays plc, one of the largest banks in the world, agreed to settle with authorities and acknowledged that the firm had manipulated LIBOR (London Inter-Bank Offered Rate)—a benchmark reference rate that was fundamental to the operation of... View Details

Keywords: Financial Systems; Financial Services; Corruption; Regulation; General Management; Management; Leadership; Economic Systems; Crime and Corruption; Ethics; Culture; Banking Industry; Financial Services Industry; United Kingdom

May 2022
Case

Timnit Gebru: 'SILENCED No More' on AI Bias and The Harms of Large Language Models

By: Tsedal Neeley and Stefani Ruper

Dr. Timnit Gebru—a leading artificial intelligence (AI) computer scientist and co-lead of Google’s Ethical AI team—was messaging with one of her colleagues when she saw the words: “Did you resign?? Megan sent an email saying that she accepted your resignation.” Heart... View Details

Keywords: Ethics; Employment; Corporate Social Responsibility and Impact; Technological Innovation

March 2010 (Revised December 2010)
Case

The Market for Prisoners: Business, Crime and Punishment in the "American Dream"

By: Rafael M. Di Tella and Laura Winig

In 2010, Corrections Corporation of America (CCA), the largest private prison operator in the U.S., was considering expansion options. The company's largest customers, federal and state governments, were under economic pressure to reduce the incarceration rate and... View Details

Keywords: For-Profit Firms; Crime and Corruption; Profit; Law Enforcement; Growth and Development Strategy; Demand and Consumers; Business and Government Relations; Competitive Strategy; Expansion; United States

19 Sep 2012
News

The Venture Capital Secret: 3 Out of 4 Start-Ups Fail

01 Sep 2016
News

Explosives Saved an American Company From Chinese Competition

June 2021
Case

Modern Endowment Management: Paula Volent and the Bowdoin Endowment

By: Luis M. Viceira, Emily R. McComb and Dean Xu

This case examines modern endowment investment management through the lens of a leadership transition between Chief Investment Officers (CIOs). In March 2021, Paula Volent is about to step down as the CIO of the endowment of Bowdoin College after twenty-one years, and... View Details

Keywords: Investment Portfolio; Investment Banking; Growth Management; Investment Return; Capital Markets; Interest Rates; Competition; Cost Management; Risk Management; Financial Liquidity; Performance Evaluation

August 2013 (Revised December 2014)
Case

Taking Dell Private

By: David J. Collis, David B. Yoffie and Matthew Shaffer

In July 2012, Michael Dell, CEO and founder of Dell, Inc., met with a representative of Silver Lake Partners to explore taking his company private. The company, which he had founded in his dorm room as a college freshman and which had made him the youngest Fortune 500... View Details

Keywords: Strategy; Going Private; The PC Market; Market For Corporate Control; Corporate Strategy; Leveraged Buyouts; Change Management; Private Equity; Market Entry and Exit; Private Ownership; Information Infrastructure; Applications and Software; Internet and the Web; Computer Industry; Technology Industry; United States

18 Oct 2013
Working Paper Summaries

Monetary Policy Drivers of Bond and Equity Risks

Keywords: by John Y. Campbell, Carolin E. Pflueger & Luis M. Viceira

David B. Yoffie

Professor David B. Yoffie is the Max and Doris Starr Professor of International Business Administration at Harvard Business School. A member of the HBS faculty since 1981, Professor Yoffie received his Bachelor's degree summa cum laude and Phi Beta... View Details

Keywords: communications; computer; e-commerce industry; electronics; financial services; information; information technology industry; internet; retail financial services; semiconductor; soft drink; telecommunications; video games

January 23, 2023
Article

Digital Public Health Interventions at Scale: The Impact of Social Media Advertising on Beliefs and Outcomes Related to COVID Vaccines

By: Susan Athey, Kristen Grabarz, Michael Luca and Nils Wernerfelt

Public health organizations increasingly use social media advertising campaigns in pursuit of public health goals. In this paper, we evaluate the impact of about $40 million of social media advertisements that were run and experimentally tested on Facebook and... View Details

Keywords: COVID-19 Pandemic; Public Health; Vaccines; Social Media; Advertising; Power and Influence; Health Care and Treatment

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2015
Chapter

Information Technology and the Distribution of Inventive Activity

By: Chris Forman, Avi Goldfarb and Shane Greenstein

We examine the relationship between the diffusion of advanced Internet technology and the geographic concentration of invention, as measured by patents. First, we show that patenting became more concentrated from the early 1990s to the early 2000s and, similarly, that... View Details

Keywords: Patents; Geographic Location; Internet and the Web; Innovation and Invention

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January 2018 (Revised April 2021)
Case

Capital Allocation at HCA

By: W. Carl Kester and Emily R. McComb

In early 2017, HCA Holdings, an investor-owned hospital management company, faced a strategically important capital allocation decision. After the exit of its private equity sponsors in 2016, HCA had to determine how best to allocate its substantial annual free cash... View Details

Keywords: Capital Allocation; Cash Distribution Policy; Dividends; Share Repurchases; Growth Strategy And Execution; Growth Investing; Capital Expenditures; Debt Management; Debt Reduction; Debt Policy; Hospital Management; Investor-owned Hospital Chains; Capital Budgeting; Capital Structure; Cash Flow; Corporate Finance; Decision Choices and Conditions; Health Industry; United States

June 1995
Case

Banc One Corporation (A)

As Banc One's use of derivatives had proliferated, investors and analysts had expressed increasing concern about the size of derivative portfolios, the potential sensitivity of their value to interest rate swings, and the lack of standardized reporting on their use.... View Details

Keywords: Credit Derivatives and Swaps; Investment Banking; Financial Reporting; Annual Reports; Banking Industry