Publications
Publications
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- All HBS Web
(13,744)
- Faculty Publications (3,111)
- 2021
- Working Paper
Does Social Media Cause Polarization? Evidence from Access to Twitter Echo Chambers during the 2019 Argentine Presidential Debate
By: Rafael Di Tella, Ramiro H. Gálvez and Ernesto Schargrodsky
We study how two groups, those inside vs. those outside echo chambers, react to a political event when we vary social media status (Twitter). Our treatments mimic two strategies often suggested as a way to limit polarization on social media: they expose people to... View Details
- November 2021 (Revised January 2022)
- Case
Nicole M. Jones and The Hangar℠: Delta Air Lines' Global Innovation Center
By: Linda A. Hill and Emily Tedards
In 2016, Nicole M. Jones was hired to lead The Hangar, Delta Air Lines’ new innovation center in Atlanta, Georgia. Delta’s leadership had intended for The Hangar to catalyze a new approach to innovation at the company. After conducting three months of research on... View Details
- Article
No Team is an Island: How Leaders Shape Networked Ecosystems for Team Success
By: Inga Carboni, Robert Cross and Amy C. Edmondson
Today’s organizations rely on networks of dynamic systems of “agile” teams to get work done. Teams are distributed, transient, and loosely bounded in service of responsiveness and innovation. The key to this new way of doing work is managing the networked ecosystem in... View Details
- November 2021
- Article
Strict ID Laws Don't Stop Voters: Evidence from a U.S. Nationwide Panel, 2008–2018
By: Enrico Cantoni and Vincent Pons
U.S. states increasingly require identification to vote—an ostensive attempt to deter fraud that prompts complaints of selective disenfranchisement. Using a difference-in-differences design on a 1.6-billion-observations panel dataset, 2008–2018, we find that the laws... View Details
- October 2021 (Revised January 2022)
- Supplement
Michael Ku and Global Clinical Supply at Pfizer Inc.: Bringing Hope to Patients (C)
By: Linda A. Hill and Emily Tedards
This case is the third installment in a series about the 10-year cultural and digital transformation of Pfizer’s Global Clinical Supply organization. In 2011, Michael Ku became Pfizer’s Vice President of Global Clinical Supply (GCS) after the company had undergone... View Details
Keywords: Clinical Supply Chain; COVID-19; Vaccine; Agile; Innovation and Invention; Change Management; Organizational Culture; Transformation; Leadership; Corporate Strategy; Health Pandemics; Crisis Management; Mission and Purpose; Health Care and Treatment; Supply Chain Management; Digital Transformation
- October 2021
- Case
Yildiz Holding's Corporate Strategy: Managing Diversification for Growth
By: Juan Alcácer and Esel Çekin
The case opens in May 2018 with Nurtaç Ziyal Afridi, chief strategy and growth officer of Yıldız Holding, a Turkish conglomerate, reflecting on the group’s diversification journey. In ten years, the group had achieved a remarkable growth through diversification: seven... View Details
- October 2021 (Revised December 2021)
- Case
Customer-Centric Design with Artificial Intelligence: Commonwealth Bank
By: Karim R. Lakhani, Yael Grushka-Cockayne, Jin Hyun Paik and Steven Randazzo
As Commonwealth Bank (CommBank) CEO Matt Comyn delivered the full financial year results in August 2021 over videoconference, it took less than two minutes for him to make his first mention of the organization's Customer Engagement Engine (CEE), the AI-driven customer... View Details
- October 2021 (Revised February 2022)
- Case
Hospital 57357: Aligning Performance Towards a Vision of a Cancer-Free Childhood
By: Susanna Gallani and Youssef Abdel Aal
The case follows the Children Cancer Hospital in Egypt, also known as Hospital 57357, as it goes through the roll-out of a new performance management system, which Dr. Sherif Abouel Naga, founder and CEO of the hospital, had championed. This was a critical juncture as... View Details
- October 2021 (Revised February 2023)
- Case
Ant Group (A)
By: Krishna G. Palepu, Feng Zhu, Susie L. Ma and Kerry Herman
In 2004, Chinese e-commerce company Alibaba created Alipay, an app to facilitate payments on its e-commerce sites. As Alibaba grew, so did Alipay, until Alipay spawned its own ecosystem of financial technology products and services under the name of Ant Group. By 2020,... View Details
- October 2021
- Case
Financial Reporting at Mattel
By: Aiyesha Dey, Trung Nguyen, Marshal Herrmann and Julia Kelley
In September 2020, Diana Ferguson was nearing her first Audit Committee meeting as the newly appointed Audit Committee chair of Mattel, Inc. Mattel was just recovering from an accounting scandal which had revealed the company’s poor internal controls and weak board... View Details
Keywords: Accounting; Accounting Audits; Financial Reporting; Financial Statements; Governance; Corporate Accountability; Corporate Disclosure; Corporate Governance; Governance Compliance; Governance Controls; Governing Rules, Regulations, and Reforms; Governing and Advisory Boards; Lawsuits and Litigation; Business and Shareholder Relations; Entertainment and Recreation Industry; Entertainment and Recreation Industry; Entertainment and Recreation Industry; North and Central America; United States; California
- October 2021 (Revised May 2023)
- Case
Project Maji: Pricing Water in Sub-Saharan Africa
By: Elie Ofek, Marco Bertini, Dilyana Karadzhova Botha and Esel Çekin
In July 2021, Sunil Lalvani, founder and CEO of Project Maji, a non-profit social enterprise headquartered in Dubai that had already provided sustainable, clean water solutions to 80,000 people living in rural communities across Ghana and Kenya, was facing an important... View Details
- October 2021
- Background Note
How to Write an Action-Planning Memo
By: Ryan Raffaelli and Akshaya Varghese
The ability to communicate an action plan through writing is essential for advancing ideas, earning credibility, and garnering support. Research has shown that leaders who write formal plans are more likely to execute successfully—written plans help members of an... View Details
- September 2021
- Case
TAV Airports: Acquiring Almaty International
By: Juan Alcácer and Esel Çekin
The case opens in April 2020 with Sani Şener, CEO of TAV Airports, a vertically integrated regional airport operator headquartered in Istanbul, Turkey, and his team discussing the pending acquisition of the Almaty International Airport in Kazakhstan. The company had... View Details
- September 2021 (Revised March 2024)
- Case
Tesla in 2023: 'Electrified' Competition
By: Eric Van den Steen, Ramon Casadesus-Masanell and Karen Elterman
Over its 17 years in existence, Tesla had redefined people’s view of electric cars, and in 2020, the company saw its stock rise by more than 700% to became the most valuable carmaker in the world. In December 2020, Tesla celebrated its fifth consecutive quarter of... View Details
Keywords: Barrier To Entry; Competitive Advantage; Innovation; Tesla; Automotive Industry; Sustainable Competitive Advantage; Values; Vision; Learning By Doing; Economies Of Scale; Electric Vehicle; Scenario Planning; Batteries; Competitive Strategy; Product Positioning; Profit; Competition; Industry Growth; Auto Industry
- September 2021 (Revised November 2022)
- Case
Community Solutions
By: Brian Trelstad and Tom Quinn
Community Solutions was an anti-homelessness nonprofit founded in 2011 after protagonist Rosanne Haggerty grew frustrated with the limited impact of traditional housing and outreach strategies. It set an ambitious goal, reached in some partner communities, of ending... View Details
Keywords: Change; Change Management; Disruption; Transformation; Communication; Communication Strategy; Decision Making; Cost vs Benefits; Decision Choices and Conditions; Decisions; Forecasting and Prediction; Social Entrepreneurship; Ethics; Values and Beliefs; Capital Budgeting; Capital Markets; Country; Government Administration; Government Legislation; Housing; Disruptive Innovation; Innovation and Invention; Innovation Strategy; Knowledge Sharing; Leading Change; Resource Allocation; Mission and Purpose; Performance Evaluation; Performance Improvement; Philanthropy and Charitable Giving; Opportunities; Social Enterprise; Nonprofit Organizations; Human Needs; Public Opinion; Social Issues; Societal Protocols; Poverty; Welfare; Well-being; System; Equality and Inequality; Consulting Industry; Real Estate Industry; United States; New York (city, NY); Florida; Texas
- September 2021
- Case
Publicis Groupe 2021: Changing Nearly Everything
By: Rosabeth Moss Kanter, Tonia Labruyere and Vincent Dessain
After succeeding long-time CEO Maurice Levy as top leader of the world’s third largest advertising, marketing, and communications company, headquartered in France, Arthur Sadoun accelerates digital transformation through a new platform drawing on talent from any of the... View Details
- September 13, 2021
- Article
Managing Through Crunch Time—Without Burning Out Your Team
By: Flavio Serapiao, Andrew Hill and Boris Groysberg
Crunch times—the long, stressful hours of work that are often required in the final weeks before a new product launch—can have an inordinate impact on the success of businesses and they’re powerful shapers of organizational culture. Effective leaders understand that... View Details
- September 2021
- Case
Posse Foundation: Developing Strong Leaders from Diverse Backgrounds
By: John J-H Kim, Robin Mendelson and Julia Kelley
Founded in 1989, Posse Foundation was a nonprofit organization with a mission of developing future leaders who reflected the U.S.’s rich diversity. The organization ran a selective, localized admissions process in 10 U.S. cities to identify outstanding students with... View Details
Keywords: COVID-19 Pandemic; Education; Higher Education; Decision Making; Demographics; Diversity; Ethnicity; Income; Race; Values and Beliefs; Geography; Geographic Scope; Growth and Development; Leadership; Leading Change; Goals and Objectives; Growth and Development Strategy; Mission and Purpose; Partners and Partnerships; Social Enterprise; Nonprofit Organizations; Identity; Social Issues; Wealth and Poverty; Expansion; Education Industry; North and Central America; United States
- September 2021
- Case
Francoise Brougher (A)
By: Edward H. Chang, Nour Kteily and Kathleen McGinn
Francoise Brougher was a high-powered technology executive in Silicon Valley. After successful stints at Google (where she rose to lead a $16 billion ad sales business) and Square (which she helped take public), she joined Pinterest as its first Chief Operating Officer... View Details
- 2021
- Working Paper
Governance Transparency and Firm Value: Evidence from Korean Chaebols
By: Akash Chattopadhyay, Sa-Pyung Sean Shin and Charles C.Y. Wang
We examine Korean business groups' transition from circular-shareholding structures to (relatively simple) pyramidal-shareholding structures between 2011 and 2018. When firms were removed from ownership loops, chaebol families' control or incentive conflicts in them... View Details