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Show Results For
- All HBS Web
(3,105)
- People (13)
- News (794)
- Research (1,893)
- Events (16)
- Multimedia (13)
- Faculty Publications (1,217)
- Research Summary
Do Prices Determine Vertical Integration?*
By: Laura Alfaro
What is the relationship between product prices and vertical integration? While the literature has focused on how integration affects prices, this paper provides evidence that prices can affect integration. Many theories in organizational economics and industrial... View Details
- 2025
- Working Paper
Heterogeneous Beliefs and Stock Market Fluctuations
By: Odhrain McCarthy and Sebastian Hillenbrand
This paper examines the role of heterogeneous investor beliefs in explaining stock market puzzles. Using survey data, we show that individual investors and investment professionals, such as equity analysts and strategists, form distinct beliefs. These groups rely on... View Details
McCarthy, Odhrain, and Sebastian Hillenbrand. "Heterogeneous Beliefs and Stock Market Fluctuations." Working Paper, June 2025. (WFA Brattle Group Ph.D. Award for Outstanding Research.)
- 21 Sep 2007
- Working Paper Summaries
Intra-Industry Foreign Direct Investment
Keywords: by Laura Alfaro & Andrew Charlton
- March 2003 (Revised January 2008)
- Case
Northrop versus TRW
By: Carliss Y. Baldwin and James Quinn
TRW, a leading supplier of advanced technology products for the auto, defense, and aerospace markets, receives an unexpected stock-for-stock offer from defense company Northrop Grumman Corp. The $11.4 billion aggregate offer, which represents a 22% premium over the... View Details
Keywords: Mergers and Acquisitions; Decision Choices and Conditions; Governing and Advisory Boards; Laws and Statutes; Negotiation Tactics; Valuation; Aerospace Industry; Auto Industry; Ohio
Baldwin, Carliss Y., and James Quinn. "Northrop versus TRW." Harvard Business School Case 903-115, March 2003. (Revised January 2008.)
- July 2001 (Revised October 2001)
- Case
Policy Management Systems Corp.: The Financial Reporting Crisis
Tim Williams, the new CFO of a publicly-traded enterprise software company, attempts to rebuild his company's reputation for reliable financial reporting following a highly visible financial reporting crisis. The crisis begins with an earnings shortfall warning, which... View Details
Keywords: Accrual Accounting; Revenue Recognition; Capital Markets; Policy; Corporate Governance; Accounting Audits; Technology Industry
Hutton, Amy P. "Policy Management Systems Corp.: The Financial Reporting Crisis." Harvard Business School Case 102-013, July 2001. (Revised October 2001.)
- June 2015 (Revised May 2017)
- Case
LOYAL3: Own What You Love™
By: Luis M. Viceira and Allison M. Ciechanover
This case features San Francisco–based financial technology startup, LOYAL3. Founded in 2008, the company seeks to disrupt the capital markets and democratize access to those markets for retail investors. By the fall of 2014, LOYAL3 had three products. In the first,... View Details
Viceira, Luis M., and Allison M. Ciechanover. "LOYAL3: Own What You Love™." Harvard Business School Case 215-075, June 2015. (Revised May 2017.)
- January 2013 (Revised April 2017)
- Supplement
Maxum Petroleum, Inc.
By: W. Carl Kester
Maxum seeks an oil-price hedging strategy that yields substantial cash during oil price spikes, is affordable under ordinary circumstances, and is easily managed. It is striving to avoid a repeat of the challenging situation encountered in 2008 when spiking oil prices... View Details
- Article
Two-Sided Platforms: Product Variety and Pricing Structures
By: Andrei Hagiu
This paper provides a new modeling framework to analyze two-sided platforms connecting producers and consumers. In contrast to the existing literature, indirect network effects are determined endogenously, through consumers' taste for variety and producer competition.... View Details
Keywords: Pricing Structure; Indirect Network Effects; Product Variety; Price; Network Effects; Two-Sided Platforms; Product; Renting or Rental; Competition
Hagiu, Andrei. "Two-Sided Platforms: Product Variety and Pricing Structures ." Journal of Economics & Management Strategy 18, no. 4 (Winter 2009).
- August 2008 (Revised March 2010)
- Case
Finland's S Group: Competing with a Cooperative Approach to Retail
By: Ramon Casadesus-Masanell, Tarun Khanna, Samuli Skurnik and Jordan Mitchell
The case looks at the two dominant Finnish retailers: S Group and Kesko. S Group is a customer-owned cooperative, which has a unique holding structure whereby 1.7 million residents (or 70 percent of Finnish households) own 22 regional cooperatives. In turn, the... View Details
Keywords: Business Model; Cooperative Ownership; Public Ownership; Competitive Advantage; Retail Industry; Finland
Casadesus-Masanell, Ramon, Tarun Khanna, Samuli Skurnik, and Jordan Mitchell. "Finland's S Group: Competing with a Cooperative Approach to Retail." Harvard Business School Case 709-409, August 2008. (Revised March 2010.)
- Teaching Interest
Overview
By: John F. Batter
As as Senior Lecturer I teach the EC course Law, Management and Entrepreneurship (cross-listed in the General Management and Entrepreneurial Management Units) in both the Fall and Spring semesters. While I have retired from my public and private company litigation... View Details
Ebehi Iyoha
Ebehi Iyoha is an Assistant Professor in the Entrepreneurial Management Unit at Harvard Business School. Her research interests lie at the intersection of industrial organization and international trade. Using a combination of structural and reduced-form methods,... View Details
- January 2023
- Article
Inequality Regimes in Sub-Saharan Africa from Precolonial Times to the Present
By: Ewout Frankema, Michiel de Haas and Marlous van Waijenburg
While current levels of economic inequality in Sub-Saharan Africa receive ample attention from academics and policymakers, we know little about the long-run evolution of inequality in the region. Even the new and influential ‘global inequality literature’ that is... View Details
Frankema, Ewout, Michiel de Haas, and Marlous van Waijenburg. "Inequality Regimes in Sub-Saharan Africa from Precolonial Times to the Present." African Affairs 122, no. 486 (January 2023): 57–94.
- June 2019
- Case
ClearLife: From Prospect to Platform
By: Alexander Braun, Lauren Cohen, Mauro Elvedi and Jiahua Xu
ClearLife’s first product was a trading and analytics platform for participants in the U.S. life settlement market, the secondary market for life insurance. ClearLife played a key role in facilitating transactions and devising a common language for expressing value and... View Details
Braun, Alexander, Lauren Cohen, Mauro Elvedi, and Jiahua Xu. "ClearLife: From Prospect to Platform." Harvard Business School Case 219-119, June 2019.
- April 2005
- Case
FBI: Mission Extended
Following the bombing of the World Trade Center in 1993, there was consensus that the FBI needed to make organizational changes. The FBI had long distinguished itself as the world's pre-eminent organization for conducting after-the-fact investigations that laid the... View Details
Beaulieu, Nancy D., and Aaron Zimmerman. "FBI: Mission Extended." Harvard Business School Case 905-061, April 2005.
- September 2002 (Revised May 2003)
- Case
X-IT and Kidde (A)
By: Constance E. Bagley and David Lane
Involves a start-up, X-IT Products LLC, whose founders had designed an innovative, lightweight, and easy-to-use--yet strong--escape ladder. After X-IT had filed a patent application for the ladder in the United States, X-IT was approached by Kidde PLC, one of the... View Details
Keywords: Patents; Negotiation Process; Agreements and Arrangements; Ethics; Lawsuits and Litigation; Business Startups; Consumer Products Industry
Bagley, Constance E., and David Lane. "X-IT and Kidde (A)." Harvard Business School Case 803-041, September 2002. (Revised May 2003.)
- March 2013
- Teaching Note
Automating the Paris Subway (TN) (A) & (B)
By: Michel Anteby and Ayn Cavicchi
In 2001, the head of the Paris Subway reflected on how to transform Line 1 into a driverless line without triggering a social conflict. After the shock of the 2000 Notre Dame de Lorette subway accident, in which a train derailed and caused 25 injuries in a Paris subway... View Details
- November 2009 (Revised July 2011)
- Case
International Lobbying and The Dow Chemical Company (A)
By: Arthur A. Daemmrich
This case explores company strategy, business-government relations, and collective action challenges associated with international and domestic lobbying regarding regulation of the chemical industry. In the fall of 2006, a five-year legislative process for a major new... View Details
Keywords: Governing Rules, Regulations, and Reforms; Government Legislation; Business and Government Relations; Power and Influence; Competitive Advantage; Corporate Strategy; Chemical Industry; Manufacturing Industry; Europe
Daemmrich, Arthur A. "International Lobbying and The Dow Chemical Company (A)." Harvard Business School Case 710-027, November 2009. (Revised July 2011.)
- 2025
- Working Paper
Generative AI Use by Capital Market Information Intermediaries: Evidence from Seeking Alpha
By: Mark Bradshaw, Chenyang Ma, Benjamin Yost and Yuan Zou
We study the use of generative AI for firm-specific financial analysis on the Seeking Alpha platform. We find that, after the initial launch of ChatGPT in November 2022, the share of AI-generated articles rose sharply to 13.4% of all articles, then declined in late... View Details
Keywords: Generative Ai; Seeking Alpha; Equity Research; Large Language Models; Gpt; AI and Machine Learning; Information Publishing; Financial Markets
Bradshaw, Mark, Chenyang Ma, Benjamin Yost, and Yuan Zou. "Generative AI Use by Capital Market Information Intermediaries: Evidence from Seeking Alpha." Harvard Business School Working Paper, No. 25-055, April 2025.
- Article
Using Internet Data for Economic Research
By: Benjamin Edelman
The data used by economists can be broadly divided into two categories. First, structured datasets arise when a government agency, trade association, or company can justify the expense of assembling records. The Internet has transformed how economists interact with... View Details
Keywords: Data and Data Sets; Research; Internet; Cost Management; Information Management; Factories, Labs, and Plants; Reports; Archives; Surveys; Economics
Edelman, Benjamin. "Using Internet Data for Economic Research." Journal of Economic Perspectives 26, no. 2 (Spring 2012): 189–206.
- Fourth Quarter 2007
- Article
Contingent Claims Approach to Measuring and Managing Sovereign Credit Risk
By: Dale . F. Gray, Robert C. Merton and Zvi Bodie
This paper proposes a new approach to measure, analyze, and manage sovereign risk based on the theory and practice of modern contingent claims analysis (CCA). The paper provides a new framework for adapting the CCA model to the sovereign balance sheet in a way that can... View Details
Keywords: Credit; Investment; Sovereign Finance; Risk Management; Emerging Markets; Market Transactions; Mathematical Methods; Valuation
Gray, Dale . F., Robert C. Merton, and Zvi Bodie. "Contingent Claims Approach to Measuring and Managing Sovereign Credit Risk." Special Issue on Credit Analysis. Journal of Investment Management 5, no. 4 (Fourth Quarter 2007): 5–28.