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Show Results For
- All HBS Web
(2,421)
- News (617)
- Research (1,442)
- Events (6)
- Multimedia (17)
- Faculty Publications (815)
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- 2021
- Working Paper
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the... View Details
Keywords: Difference In Differences; Staggered Difference-in-differences Designs; Generalized Difference-in-differences; Dynamic Treatment Effects; Mathematical Methods
Baker, Andrew C., David F. Larcker, and Charles C.Y. Wang. "How Much Should We Trust Staggered Difference-In-Differences Estimates?" European Corporate Governance Institute Finance Working Paper, No. 736/2021, February 2021. (Harvard Business School Working Paper, No. 21-112, April 2021.)
- 2024
- Working Paper
Smaller than We Thought? The Effect of Automatic Savings Policies
By: James J. Choi, David Laibson, Jordan Cammarota, Richard Lombardo and John Beshears
Medium- and long-run dynamics undermine the effect of automatic enrollment and default savings-rate auto-escalation on retirement savings. Our analysis of nine 401(k) plans incorporates the facts that employees frequently leave firms (often before matching... View Details
Choi, James J., David Laibson, Jordan Cammarota, Richard Lombardo, and John Beshears. "Smaller than We Thought? The Effect of Automatic Savings Policies." NBER Working Paper Series, No. 32828, November 2024.
- June 2009 (Revised April 2019)
- Case
Crosley
By: Tom Nicholas and David Chen
In October 1941, a top secret envoy from the U.S. military was sent to Crosley Corporation in Cincinnati, Ohio to request their assistance to construct a weapon that would drastically strengthen the defenses of U.S. troops: the proximity fuze. Such a fuze would allow... View Details
Keywords: Information Technology; History; Production; National Security; Organizational Structure; Corporate Strategy; Research and Development; Product Development; Business and Government Relations; Creativity; Innovation and Invention; Ohio
Nicholas, Tom, and David Chen. "Crosley." Harvard Business School Case 809-160, June 2009. (Revised April 2019.)
- July 2012
- Case
El Paso's Sale to Kinder Morgan
By: John Coates, Clayton Rose and David Lane
On October 16, 2011, El Paso agreed to sell itself to Kinder Morgan for just over $21 billion. Shareholders filed suit, arguing that the process was tainted by conflict and that a higher price could be obtained. Delaware Chancellor Leo Strine agreed with the plaintiffs... View Details
Keywords: El Paso; Kinder Morgan; Goldman Sachs; Leo Strine; Conflicts Of Interest; Corporate Governance; Relationships; Lawsuits and Litigation; Energy Industry; Banking Industry; United States
Coates, John, Clayton Rose, and David Lane. "El Paso's Sale to Kinder Morgan." Harvard Business School Case 313-021, July 2012.
- April 2005 (Revised February 2006)
- Case
Monster Networking
By: Thomas R. Eisenmann and David Andrew Vivero
The management at Monster.com, the leading U.S. provider of online recruitment services, must decide how to proceed with Monster Networking (MN), a new business launched in late 2003. MN helps users identify other individuals who can offer career advice. Monster.com... View Details
Keywords: Digital Platforms; Internet and the Web; Social and Collaborative Networks; Recruitment; Service Industry; Employment Industry; United States
Eisenmann, Thomas R., and David Andrew Vivero. "Monster Networking." Harvard Business School Case 805-145, April 2005. (Revised February 2006.)
- December 2019 (Revised February 2024)
- Teaching Note
Ripple: The Business of Crypto and Ripple 2023
By: David B. Yoffie
The case explores Ripple CEO Brad Garlinghouse’s mission to disrupt the global payments industry by leveraging the cryptocurrency XRP. Students will learn about Bitcoin and the blockchain industry, as well as Ripple’s unique crypto business model. The case provides an... View Details
Keywords: Payment Systems; Cryptocurrency; Bitcoin; Blockchain; Fintech; Business Startups; Business Model; Disruption; Strategy
- Article
DEA Model with Shared Resources and Efficiency Decomposition
By: Yao Chen, Juan Du, H. David Sherman and Joe Zhu
Data envelopment analysis (DEA) has proved to be an excellent approach for measuring performance of decision making units (DMUs) that use multiple inputs to generate multiple outputs. In many real world scenarios, DMUs have a two-stage network process with shared input... View Details
Chen, Yao, Juan Du, H. David Sherman, and Joe Zhu. "DEA Model with Shared Resources and Efficiency Decomposition." European Journal of Operational Research 207, no. 1 (November 2010): 339–349.
- 03 Mar 2015
- First Look
First Look: March 3
foundings are driven by collective patterns of activity-that is, by patterns of prior foundings, of support from related markets, and of institutional activism in a given sector. Building on research on... View Details
Keywords: Sean Silverthorne
- 22 Apr 2014
- First Look
First Look: April 22
control over the use of remittances. In partnership with a Salvadoran bank, we offered U.S.-based migrants from El Salvador bank accounts in their home country into which they could send remittances. We randomly varied migrant control over El Salvador-based savings... View Details
Keywords: Sean Silverthorne
- October 2005 (Revised March 2006)
- Case
Strategic Inflection: TiVo in 2005
By: David B. Yoffie, Pai-Ling Yin and Barbara Mack
In the late 1990s, TiVo pioneered the digital video recorder (DVR), a new consumer electronics category. By 2005, the company was the clear leader in technology and installed base. It had also built extraordinary loyalty among its customers. However, TiVo lost a half... View Details
Keywords: Technological Innovation; Competition; Partners and Partnerships; Information Infrastructure; Television Entertainment; Brands and Branding; Consumer Products Industry; Electronics Industry
Yoffie, David B., Pai-Ling Yin, and Barbara Mack. "Strategic Inflection: TiVo in 2005." Harvard Business School Case 706-421, October 2005. (Revised March 2006.)
- 13 Mar 2018
- First Look
March 13, 2018
West: Origins, Evolution and Resilience The United States in Contemporary Perspectives: Evolving Forms, Strategy, and Performance By: Collis, David J., Bharat Anand, and J. Yo-Jud Cheng Abstract—In spite of surging interest in the... View Details
Keywords: Sean Silverthorne
- December 2009 (Revised June 2010)
- Case
Ebro Puleva
By: David E. Bell, Antonio Garcia de Castro, Rocio Reina Paniagua and Mary Louise Shelman
Once Spain's largest sugar company, Ebro Puleva has been transformed through a series of international acquisitions into the world's largest package rice company and second largest pasta company. In 2009, Chairman Antonio Hernandez Callejas must decide how to proceed... View Details
Keywords: Mergers and Acquisitions; Financial Crisis; Globalized Firms and Management; Leadership; Growth and Development Strategy; Brands and Branding; Consumer Behavior; Agriculture and Agribusiness Industry; Retail Industry; Spain
Bell, David E., Antonio Garcia de Castro, Rocio Reina Paniagua, and Mary Louise Shelman. "Ebro Puleva." Harvard Business School Case 510-026, December 2009. (Revised June 2010.)
- 2009
- Other Unpublished Work
Steering Monetary Policy Through Unprecedented Crises
By: David Moss and Cole Bolton
In early April 2008, economic conditions in Europe appeared to be deteriorating on almost all fronts: sales figures were falling, business and consumer confidence were slumping, forecasts for European growth were being revised downward, and inflation was rising. In... View Details
- Article
Lean Strategy
By: David Collis
Strategy and entrepreneurship are often seen as polar opposites. Yet the two desperately need each other: strategy without entrepreneurship is central planning; entrepreneurship without strategy leads to chaos. The two approaches can be reconciled through the Lean... View Details
Collis, David. "Lean Strategy." Harvard Business Review 94, no. 3 (March 2016): 62–68.
- February 2021
- Article
Assessment of Electronic Health Record Use Between U.S. and Non-U.S. Health Systems
By: A Jay Holmgren, Lance Downing, David W. Bates, Tait D. Shanafelt, Arnold Milstein, Christopher Sharp, David Cutler, Robert S. Huckman and Kevin A. Schulman
Importance: Understanding how the electronic health record (EHR) system changes clinician work, productivity, and well-being is critical. Little is known regarding global variation in patterns of use.
Objective: To provide insights into which EHR... View Details
Objective: To provide insights into which EHR... View Details
Keywords: Electronic Health Records; Health Care and Treatment; Online Technology; Health Industry; Information Technology Industry
Holmgren, A Jay, Lance Downing, David W. Bates, Tait D. Shanafelt, Arnold Milstein, Christopher Sharp, David Cutler, Robert S. Huckman, and Kevin A. Schulman. "Assessment of Electronic Health Record Use Between U.S. and Non-U.S. Health Systems." JAMA Internal Medicine 181, no. 2 (February 2021): 251–259.
- September 2012
- Article
The Size and Composition of Corporate Headquarters in Multinational Companies: Empirical Evidence
By: David J. Collis, David Young and Michael Goold
Based on a six-country survey of nearly 250 multinationals (MNCs), this paper is the first empirical analysis to describe the size and composition of MNC headquarters and to account for differences among them. Findings are as follows: MNC corporate headquarters are... View Details
Keywords: Headquarters; Subsidiaries; Multinational Corporations; Organization Design; Administrative Heritage; International Strategy; Business Subsidiaries; Organizational Design; Multinational Firms and Management; Size; Business Headquarters; Global Strategy
Collis, David J., David Young, and Michael Goold. "The Size and Composition of Corporate Headquarters in Multinational Companies: Empirical Evidence." Journal of International Management 18, no. 3 (September 2012): 260–275.
- January 2022
- Article
Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems
By: David R. Clough and Andy Wu
Gregory, Henfridsson, Kaganer, and Kyriakou (2020) highlight the important role of data and AI as strategic resources that platforms may use to enhance user value. However, their article overlooks a significant conceptual distinction: the installed base of... View Details
Keywords: Artificial Intelligence; Data Strategy; Ecosystem; Value Capture; Digital Platforms; Analytics and Data Science; Strategy; Learning; Value Creation; AI and Machine Learning; Technology Industry; Information Technology Industry; Video Game Industry; Advertising Industry
Clough, David R., and Andy Wu. "Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems." Academy of Management Review 47, no. 1 (January 2022): 184–189.
- March 2008 (Revised July 2011)
- Supplement
Cadbury Schweppes: Capturing Confectionery (C)
By: David Collis, Toby Stuart and Troy Smith
In late 2002, global confectionery and beverage maker Cadbury Schweppes needed to decide whether or not to make an acquisition bid for Adams, an underperforming gum company which had been put up for sale by pharmaceutical giant Pfizer. Examining the decision from a... View Details
Collis, David, Toby Stuart, and Troy Smith. "Cadbury Schweppes: Capturing Confectionery (C)." Harvard Business School Supplement 708-455, March 2008. (Revised July 2011.)
- Article
Decreases In Readmissions Credited to Medicare's Program to Reduce Hospital Readmissions Have Been Overstated
By: Christopher Ody, Lucy Msall, Leemore S. Dafny, David Grabowski and David Cutler
Medicare’s Hospital Readmissions Reduction Program (HRRP) has been credited with lowering risk-adjusted readmission rates for targeted conditions at general acute care hospitals. However, these reductions appear to be illusory or overstated. This is because a... View Details
Keywords: Readmission Rates; Hospitals; Acute Care Hospitals; Medicare; Myocardial Infarction; Heart Failure; Health Care and Treatment
Ody, Christopher, Lucy Msall, Leemore S. Dafny, David Grabowski, and David Cutler. "Decreases In Readmissions Credited to Medicare's Program to Reduce Hospital Readmissions Have Been Overstated." Health Affairs 38, no. 1 (January 2019): 36–43.
- 2017
- Working Paper
Carbon Tariffs: Effects in Settings with Technology Choice and Foreign Production Cost Advantage
By: David F. Drake
Emissions regulation is a policy mechanism intended to address the threat of climate change. However, the stringency of emissions regulation varies across regions, raising concerns over carbon leakage—an outcome where stringent regulation in one region shifts... View Details
Keywords: Technology; Competition; Pollutants; Taxation; Environmental Sustainability; Globalized Markets and Industries
Drake, David F. "Carbon Tariffs: Effects in Settings with Technology Choice and Foreign Production Cost Advantage." Harvard Business School Working Paper, No. 13-021, August 2012. (Revised August 2017. Forthcoming at Manufacturing & Service Operations Management.)