Publications
Publications
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- All HBS Web
(975)
- Faculty Publications (79)
- May–June 2021
- Article
How to Close the Gender Gap
By: Colleen Ammerman and Boris Groysberg
Most companies say they’re committed to advancing women into leadership roles. What they may fail to recognize, though, is that systemic barriers are holding women back. As a result, women remain disadvantaged at every stage of their employment and underrepresented in... View Details
- 2021
- Book
Glass Half-Broken: Shattering the Barriers That Still Hold Women Back at Work
By: Colleen Ammerman and Boris Groysberg
Why does the gender gap persist and how can we close it? For years women have made up the majority of college-educated workers in the United States. In 2019, the gap between the percentage of women and the percentage of men in the workforce was the smallest on record.... View Details
- November 2020 (Revised February 2022)
- Case
CommonSpirit Health: Integrating a Merger of Equals
By: Robert S. Huckman, Hise Gibson and Nicole Gilmore
Soon after closing the 2019 merger of Catholic Health Initiatives (CHI) and Dignity Health to create CommonSpirit Health, Lloyd Dean and Kevin Lofton-–jointly appointed to the role of CEO—must make several operational and strategic decisions related to the integration... View Details
Keywords: Health Care Delivery; Hospital; Merger; Merger Integration; Hospital Mergers; Health Information Technology; CEOs; Health Care and Treatment; Mergers and Acquisitions; Integration; Leadership; Customer Value and Value Chain; Decision Choices and Conditions; Governance; Information Technology; Health Industry; United States
- 2020
- Working Paper
Hospital Allocation and Racial Disparities in Health Care
By: Amitabh Chandra, Pragya Kakani and Adam Sacarny
We develop a simple framework to measure the role of hospital allocation in racial disparities in health care and use it to study Black and white Medicare patients who are treated for heart attacks—a condition where virtually everyone receives care, hospital care is... View Details
- 2020
- Working Paper
Bankruptcy and the COVID-19 Crisis
By: Jialan Wang, Jeyul Yang, Benjamin Iverson and Raymond Kluender
We examine the impact of the COVID-19 economic crisis on business and consumer bankruptcies in the United States using real-time data on the universe of filings. Historically, bankruptcies have closely tracked the business cycle and contemporaneous unemployment rates.... View Details
- September 2020 (Revised November 2020)
- Case
d.light
By: Michael Chu, Krishna G. Palepu and Dilyana Karadzhova Botha
Kenyan off-grid-solar pioneer d.light can power entire homes in rural Africa but must now decide how to fund the growth of its asset-heavy business model. Ned Tozun and Sam Goldman founded d.light in 2006 to transform lives through solar solutions enabling access to... View Details
- July 2020
- Teaching Note
COVID-19: The Global Shutdown
By: Laura Alfaro and Sarah Jeong
In the first months of 2020, a pandemic overwhelmed the world. COVID-19, commonly known as the coronavirus, spread from China and created a severe public health emergency across countries. While an immediate fear of the disease’s impact on human life permeaacted... View Details
- 2020
- Working Paper
How Should U.S. Bank Regulators Respond to the COVID-19 Crisis?
By: Michael Blank, Samuel G. Hanson, Jeremy C. Stein and Adi Sunderam
Drawing on lessons from the 2007–2009 Global Financial Crisis (GFC) and a simple conceptual framework, we examine the response of U.S. bank regulators to the COVID-19 pandemic. We argue that the current regulatory strategy of “watchful waiting”—the same strategy that... View Details
- May 2020 (Revised July 2020)
- Case
COVID-19: The Global Shutdown
By: Laura Alfaro and Sarah Jeong
In the first months of 2020, a pandemic overwhelmed the world. COVID-19, commonly known as the coronavirus, spread from China and created a severe public health emergency across countries. While an immediate fear of the disease’s impact on human life permeated society,... View Details
- August 2019
- Article
When and How to Diversify—A Multicategory Utility Model for Personalized Content Recommendation
By: Yicheng Song, Nachiketa Sahoo and Elie Ofek
Sometimes we desire change, a break from the same or an opportunity to fulfill different aspects of our needs. Noting that consumers seek variety, several approaches have been developed to diversify items recommended by personalized recommender systems. However,... View Details
- July–August 2019
- Article
The Soul of a Startup
By: Ranjay Gulati
There’s an essential, intangible something in start-ups—an energy, a soul. It inspires enthusiasm and fosters a sense of deep connection and mutual purpose. While this spirit persists, engagement is high and businesses keep their edge.
But all too often,... View Details
But all too often,... View Details
- October 2018 (Revised January 2019)
- Case
The Financial Crisis: Hank Paulson in 2008
On the afternoon of Monday October 13, 2008, Hank Paulson Jr., the Secretary of the Treasury of the United States, walked into the large conference room across the hall from his office in the Treasury Department. Joining him were Federal Reserve Chairman Ben Bernanke,... View Details
- September 2018
- Article
Asset Price Dynamics in Partially Segmented Markets
By: Robin Greenwood, Samuel G. Hanson and Gordon Y. Liao
We develop a model in which capital moves quickly within an asset class but slowly between asset classes. While most investors specialize in a single asset class, a handful of generalists can gradually reallocate capital across markets. Upon the arrival... View Details
- March 2018
- Article
Making the Numbers? 'Short Termism' and the Puzzle of Only Occasional Disaster
By: Hazhir Rahmandad, Rebecca Henderson and Nelson P. Repenning
Much recent work in strategy and popular discussion suggests that an excessive focus on "managing the numbers"—delivering quarterly earnings at the expense of longer-term investments—makes it difficult for firms to make the investments necessary to build competitive... View Details
- 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
- 2017
- Working Paper
Lessons Unlearned? Corporate Debt in Emerging Markets
By: Laura Alfaro, Gonzalo Asis, Anusha Chari and Ugo Panizza
This paper documents a set of new stylized facts about leverage and financial fragility for emerging market firms following the Global Financial Crisis (GFC). Corporate debt vulnerability indicators during the Asian Financial Crisis (AFC) attributed to corporate... View Details
- November 2016 (Revised February 2017)
- Case
BrightStar Care: The Evolution of a Leadership Team
By: Boris Groysberg, Colleen Ammerman and John D. Vaughan
BrightStar Care was a rapidly growing franchise of home health care agencies. Founded by husband and wife team JD and Shelly Sun as a single agency near Chicago in 2002, BrightStar had opened nearly 300 franchises across the United States by 2016, generating over $300... View Details
Keywords: Health Care Services; Entrepreneurs; Board Of Directors; Boards Of Directors; Health Care Industry; Growth Strategy; Organizational Change; Brand Positioning; Entrepreneurial Organizations; Entrepreneurial Management; Franchising; Family-owned Business; Home Health Care; Managing Growth; Management Styles; Organizational Development; Talent Management; Women Executives; Women And Leadership; Business Startups; Family Business; Small Business; Talent and Talent Management; Governing and Advisory Boards; Health Care and Treatment; Human Capital; Leadership Development; Leadership Style; Business or Company Management; Growth and Development Strategy; Management Analysis, Tools, and Techniques; Management Skills; Management Style; Management Succession; Management Systems; Management Teams; Brands and Branding; Marketing Strategy; Strategy
- 2016
- Book
Building the Future: Big Teaming for Audacious Innovation
By: Amy C. Edmondson and Susan Salter Reynolds
Machiavelli famously wrote, "There is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success than to take the lead in the introduction of a new order of things." That's what this book is about—innovation far more audacious... View Details
- March 2016
- Supplement
Compass Group: The Ascension Health Decision
By: Ryan W. Buell
In 2012, Compass Group (Compass) was on the verge of closing a $2 billion deal with Ascension Health (Ascension), one of the largest healthcare systems in the United States. Under the deal, Compass would provide foodservice management and cleaning services for 86 of... View Details
- March 2016 (Revised February 2020)
- Teaching Note
Compass Group: The Ascension Health Decision
By: Ryan W. Buell
In 2012, Compass Group (Compass) was on the verge of closing a $2 billion deal with Ascension Health (Ascension), one of the largest healthcare systems in the United States. Under the deal, Compass would provide foodservice management and cleaning services for 86 of... View Details