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- All HBS Web
(1,487)
- People (1)
- News (156)
- Research (1,134)
- Events (7)
- Multimedia (6)
- Faculty Publications (992)
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- September 2004
- Article
Rethinking Mergers and Acquisitions: How to Involve R&D in Company Growth
By: Arthur A. Daemmrich
- October 2009 (Revised February 2010)
- Supplement
Merger of Equals: The Integration of Mellon Financial and The Bank of New York (B)
By: Ryan D. Taliaferro, Clayton S. Rose and David Lane
[Continuation of "A" case.] Less than a month after the close of the merger between The Bank of New York and Mellon Financial, managers at the two firms realized that plans for combining their asset servicing businesses – and realizing the $180 million of annual cost... View Details
Taliaferro, Ryan D., Clayton S. Rose, and David Lane. "Merger of Equals: The Integration of Mellon Financial and The Bank of New York (B)." Harvard Business School Supplement 210-025, October 2009. (Revised February 2010.)
- May 1994 (Revised November 1995)
- Supplement
Shawmut National Corporation's Merger with Bank of Boston Corporation (B)
By: Benjamin C. Esty
Supplements the (A) case. View Details
Esty, Benjamin C. "Shawmut National Corporation's Merger with Bank of Boston Corporation (B)." Harvard Business School Supplement 294-120, May 1994. (Revised November 1995.)
- June 1991 (Revised June 1995)
- Teaching Note
Kraft General Foods: The Merger (A) and (B), Teaching Note
By: David J. Collis
Teaching Note for (9-391-139) and (9-795-153). View Details
Keywords: Food and Beverage Industry
- October 2022 (Revised August 2024)
- Case
Cigna-Express Scripts: Can a Vertical Merger Rescue an Industry Under Attack?
By: Leemore Dafny
In Fall 2019, Cigna Corporation – a global health services company with a significant presence in the U.S. employer-sponsored health insurance market - was digesting its $54 billion acquisition of Express Scripts, Inc. (ESI), a pharmacy benefit manager (PBM)... View Details
Dafny, Leemore. "Cigna-Express Scripts: Can a Vertical Merger Rescue an Industry Under Attack?" Harvard Business School Case 323-038, October 2022. (Revised August 2024.)
- January 2016 (Revised January 2017)
- Case
The Proposed Merger of M&T Bank and Hudson City Bancorp (A)
By: David Scharfstein and Joel Heilprin
Scharfstein, David, and Joel Heilprin. "The Proposed Merger of M&T Bank and Hudson City Bancorp (A)." Harvard Business School Case 216-046, January 2016. (Revised January 2017.)
- 2002
- Working Paper
Mergers and Acquisitions: An Empirical Analysis of Synergies, Externalities and Dynamics
By: Rachel T.A. Croson and Kathleen L. McGinn
- March 2021
- Teaching Note
Ketchup and Hotdog Synergies: Intangibles Created by the Kraft Heinz Merger
By: Paul M. Healy
- July 2020 (Revised May 2022)
- Case
Ketchup and Hotdog Synergies: Intangibles Created by the Kraft Heinz Merger
By: Paul Healy and Marshal Herrmann
Healy, Paul, and Marshal Herrmann. "Ketchup and Hotdog Synergies: Intangibles Created by the Kraft Heinz Merger." Harvard Business School Case 121-017, July 2020. (Revised May 2022.)
- January 2016
- Supplement
The Proposed Merger of M&T Bank and Hudson City Bancorp (B)
Scharfstein, David. "The Proposed Merger of M&T Bank and Hudson City Bancorp (B)." Harvard Business School Supplement 216-047, January 2016.
- 2004
- Working Paper
Mergers and Acquisitions: An Experimental Analysis of Synergies Externalities and Dynamics
By: Rachel Croson, Armando Gomes, Kathleen L. McGinn and Markus Nöth
- summer 2007
- Article
Fast-Track Profit Models: Creating the New Due-Diligence Process for Mergers and Acquisitions
By: Steven R. Anderson, Kevin J. Prokop and Robert S. Kaplan
Anderson, Steven R., Kevin J. Prokop, and Robert S. Kaplan. "Fast-Track Profit Models: Creating the New Due-Diligence Process for Mergers and Acquisitions." Journal of Private Equity 10, no. 3 (summer 2007): 22–34.
- January 1978
- Article
Pooling vs. Purchase: The Effects of Accounting for Mergers on Stock Prices
By: Robert S. Kaplan, Hai Hong and Gershon Mandelker
Kaplan, Robert S., Hai Hong, and Gershon Mandelker. "Pooling vs. Purchase: The Effects of Accounting for Mergers on Stock Prices." Accounting Review 53 (January 1978): 31–47.
- October 12, 2023
- Article
How to Build a Life: Why the Most Successful Marriages Are Start-Ups, Not Mergers
By: Arthur C. Brooks
Brooks, Arthur C. "How to Build a Life: Why the Most Successful Marriages Are Start-Ups, Not Mergers." The Atlantic (October 12, 2023).
- Winter 2001
- Other Article
Competition and Antitrust: A Productivity-Based Approach to Evaluating Mergers and Joint Ventures
This article seeks to contribute thinking on how the intellectual foundations of antitrust might be updated, based on a large body of theoretical and empirical research on company strategy, competition, and economic development. The aim is to outline a new direction... View Details
Porter, Michael E. "Competition and Antitrust: A Productivity-Based Approach to Evaluating Mergers and Joint Ventures." Antitrust Bulletin 46, no. 4 (Winter 2001): 919–958. (Revised May 30, 2002.)
- November 2017
- Supplement
Merging American Airlines and US Airways (B)
By: David G. Fubini, David A. Garvin and Carin-Isabel Knoop
Exhibit to Merging American Airlines and US Airways (A) case. In February 2013, US Airways announced that it would merge with American Airlines to create the world’s largest airline. Doug Parker, the CEO of US Airways, would become CEO of the new American Airlines... View Details
Keywords: Airlines; Merger; Takeover; Integration Strategy; Merger Integration; Mergers and Acquisitions; Decision Making; Governance; Management Teams; Operations; Organizational Culture; Air Transportation Industry; United States
Fubini, David G., David A. Garvin, and Carin-Isabel Knoop. "Merging American Airlines and US Airways (B)." Harvard Business School Supplement 418-036, November 2017.
- 11 May 1992 - 13 May 1992
- Lecture
Emerging Role of Japanese Companies in Domestic and International Mergers and Acquisitions
By: W. Carl Kester
- 2008
- Article
Governance and Merger Accounting: Evidence from Stock Price Reactions to Purchase versus Pooling
By: Francisco de Asis Martinez-Jerez
This paper examines the effect of corporate governance on investor reactions to accounting choice in the context of accounting for business combinations. Using a sample of 324 recent stock swap acquisitions I find that, contrary to practitioners' belief that capital... View Details
Keywords: Financial Reporting; Financial Statements; Mergers and Acquisitions; Capital Markets; Stocks; Price; Corporate Governance
Martinez-Jerez, Francisco de Asis. "Governance and Merger Accounting: Evidence from Stock Price Reactions to Purchase versus Pooling." Art. 1. European Accounting Review 17, no. 1 (2008): 5–35. (Lead Article.)
- January 2017 (Revised December 2017)
- Case
Merging American Airlines and US Airways (A)
By: David G. Fubini, David A. Garvin and Carin-Isabel Knoop
In February 2013, US Airways announced that it would merge with American Airlines to create the world’s largest airline. Doug Parker, the CEO of US Airways, would become CEO of the new American Airlines Group (AAL). The case describes a number of critical decisions... View Details
Keywords: Airlines; Merger; Takeover; Integration Strategy; Merger Integration; Mergers and Acquisitions; Decision Making; Governance; Management Teams; Operations; Organizational Culture; Air Transportation Industry; United States
Fubini, David G., David A. Garvin, and Carin-Isabel Knoop. "Merging American Airlines and US Airways (A)." Harvard Business School Case 417-054, January 2017. (Revised December 2017.)
- August 2004 (Revised March 2005)
- Case
MGM Mirage's Bid for Mandalay Resort Group (C): Communicating During the Merger Process
Supplements the (A) case. View Details
Kimbrough, Michael D., and Gregory S. Miller. "MGM Mirage's Bid for Mandalay Resort Group (C): Communicating During the Merger Process." Harvard Business School Case 105-019, August 2004. (Revised March 2005.)