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Show Results For
- All HBS Web
(7,192)
- People (4)
- News (1,211)
- Research (5,278)
- Events (66)
- Multimedia (55)
- Faculty Publications (3,799)
- 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.)
- Research Summary
Efficient Consumer Response (ECR)
Seifert is conducting ongoing research on ECR success factor study. Identifying the relevant success factors for ECR-Implementation. Research includes analysis of supply chain mangement and category management implementiation. Statistical data is based on extensive... View Details
- 23 Sep 2014
- HBS Seminar
Mariano Tappata, Sauder School of Business, University of British Columbia
- June 2013 (Revised March 2014)
- Case
Hennes & Mauritz, 2012
By: John R. Wells and Galen Danskin
In 2012, Hennes & Maurtiz (H&M) was the second-largest specialty apparel retailer in the world. Sales for fiscal 2012 were $18.1 billion and operating profits were $3.3 billion. H&M operated 2,776 stores, 93% of them outside its home base of Sweden. Over the past... View Details
Keywords: Fashion; Strategic Decision Making; Strategy; Supply Chain; Competitive Strategy; Corporate Strategy; Fashion Industry; Europe; Sweden
Wells, John R., and Galen Danskin. "Hennes & Mauritz, 2012." Harvard Business School Case 713-512, June 2013. (Revised March 2014.)
- February 2018 (Revised August 2018)
- Case
OpenInvest
By: Shawn Cole, Boris Vallée and Nicole Tempest Keller
Founded by a team of hedge fund and NGO alumni, OpenInvest launched its platform in 2015 to enable retail investors to tailor their portfolios to their personal values in an automated way, for instance by screening out weapons manufacturers stocks or overweighting... View Details
Keywords: Fintech; Impact Investing; Investment Portfolio; Customization and Personalization; Technological Innovation; Social Issues; Growth and Development Strategy; Business Model; Financial Services Industry
Cole, Shawn, Boris Vallée, and Nicole Tempest Keller. "OpenInvest." Harvard Business School Case 218-064, February 2018. (Revised August 2018.)
- 09 Aug 2010
- Research & Ideas
How to Speed Up Energy Innovation
Is there a special sauce for stimulating innovation in the energy sector, a concoction to spur cost-effective developments toward solving the climate change problem? HBS professor Rebecca Henderson doesn't claim to know all the ingredients for that special sauce. But... View Details
- May 2016
- Article
Matching with Slot-Specific Priorities: Theory
By: Scott Duke Kominers and Tayfun Sönmez
We introduce a two-sided, many-to-one matching with contracts model in which agents with unit demand match to branches that may have multiple slots available to accept contracts. Each slot has its own linear priority order over contracts; a branch chooses contracts by... View Details
Keywords: Matching With Contracts; Stability; Strategy-proofness; School Choice; Affirmative Action; Airline Seat Upgrades; Contracts; Market Design; Marketplace Matching; Balance and Stability
Kominers, Scott Duke, and Tayfun Sönmez. "Matching with Slot-Specific Priorities: Theory." Theoretical Economics 11, no. 2 (May 2016): 683–710.
- 29 Apr 2012
- News
American Recovery?
Tracking the Short-Run Price Impact of U.S. Tariffs
This paper examines the short-run impact of the 2025 U.S. tariffs on consumer prices using a unique integration of high-frequency retail pricing data, product-level country-of-origin information, and detailed tariff classifications. By linking daily prices from major... View Details
- 2025
- Working Paper
How Do Households Suppress the Price of Tail Risk?
By: Laurent Calvet, Claire Célérier, Gordon Liao and Boris Vallée
This paper investigates the effects of the issuance of retail products with non-linear payoffs on option prices. For a given underlying asset, when the outstanding volume of products embedding a short-put position increases, implied volatility at the corresponding... View Details
Keywords: Security Design; Dividend; Options; Structured Products; Market Segmentation; Financial Instruments; Design; Volatility; Markets; Segmentation
Calvet, Laurent, Claire Célérier, Gordon Liao, and Boris Vallée. "How Do Households Suppress the Price of Tail Risk?" Working Paper, 2025.
- June 2010
- Article
A Gap-Filling Theory of Corporate Debt Maturity Choice
By: Robin Greenwood, Samuel G. Hanson and Jeremy C. Stein
We argue that time-series variation in the maturity of aggregate corporate debt issues arises because firms behave as macro liquidity providers, absorbing the large supply shocks associated with changes in the maturity structure of government debt. We document that... View Details
Keywords: Business Ventures; Decision Choices and Conditions; Borrowing and Debt; Financial Liquidity; Investment Return; Government and Politics
Greenwood, Robin, Samuel G. Hanson, and Jeremy C. Stein. "A Gap-Filling Theory of Corporate Debt Maturity Choice." Journal of Finance 65, no. 3 (June 2010): 993–1028. (Supplementary results in Internet Appendix.)
- Forthcoming
- Article
From Bupkis to Sechel in Health Care
By: Regina E. Herzlinger and Richard Boxer
Fifty years ago, famed economist Milton Friedman declared that “The social responsibility of business is to increase its profits.” This free market manifesto was adopted by the healthcare industry as well. But transactional has evolved into transformational with the... View Details
Keywords: Corporate Accountability; Customer Focus and Relationships; Corporate Social Responsibility and Impact; Health Industry
Herzlinger, Regina E., and Richard Boxer. "From Bupkis to Sechel in Health Care." JAMA, the Journal of the American Medical Association (forthcoming).
- March 2008 (Revised August 2009)
- Case
Linden Lab: Opening Second Life
By: Thomas R. Eisenmann and Alison Berkley Wagonfeld
In early 2008, managers in Linden Lab, creator of the virtual world Second Life, faced decisions about the company's strategy. Despite profound initial skepticism about demand for a user-generated virtual world that was not a traditional game, Second Life had achieved... View Details
Keywords: Business Growth and Maturation; Decision Choices and Conditions; Entrepreneurship; Growth and Development Strategy; Open Source Distribution; Partners and Partnerships; Software
Eisenmann, Thomas R., and Alison Berkley Wagonfeld. "Linden Lab: Opening Second Life." Harvard Business School Case 808-114, March 2008. (Revised August 2009.)
- July 1994 (Revised April 1995)
- Case
San Francisco Bay Consulting
By: George P. Baker III and Karin B Monsler
San Francisco Bay Consulting leads the field of economic consulting and litigation support in the application of powerful computers and cutting edge software to manipulate and analyze large data sets. The transfer pricing system, used to facilitate the purchasing and... View Details
Keywords: Fair Value Accounting; Profit; Marketing; Fluctuation; Consulting Industry; Computer Industry
Baker, George P., III, and Karin B Monsler. "San Francisco Bay Consulting." Harvard Business School Case 195-096, July 1994. (Revised April 1995.)
- November 2018
- Case
Sportradar (A): From Data to Storytelling
By: Ramon Casadesus-Masanell, Karen Elterman and Oliver Gassmann
In 2013, the Swiss sports data company Sportradar debated whether to expand from its core business of data provision to bookmakers into sports media products. Sports data was becoming a commodity, and in the future, sports leagues might reduce their dependence on... View Details
Keywords: Sports Data; Data; Sport; Sportradar; Football; Soccer; Gambling; Betting; Betting Markets; Statistics; Odds; Live Data; Bookmakers; Betradar; Visualization; Integrity; Monitoring; Gaming; Streaming; 2013; St.Gallen; Algorithm; Mathematical Modeling; Carsten Koerl; Betandwin; Bwin; Wagering; Probability; Sports; Analytics and Data Science; Mathematical Methods; Games, Gaming, and Gambling; Transition; Strategy; Media; Media and Broadcasting Industry; Media and Broadcasting Industry; Media and Broadcasting Industry; Media and Broadcasting Industry; Europe; Switzerland; Asia; Austria; Germany; England
Casadesus-Masanell, Ramon, Karen Elterman, and Oliver Gassmann. "Sportradar (A): From Data to Storytelling." Harvard Business School Case 719-429, November 2018.
Transparency As A Solution For COVID-19-Related Hospital Capacity Issues
In the initial phases of the COVID-19 pandemic, many US hospitals could not provide an adequate supply of beds to meet demand. Solving the problem of hospital bed capacity is of great... View Details
- Research Summary
Papers in progress
- “The ‘Carbon Club’: Oil Companies, Climate Change & the Shaping of Public Policy”. Conspiracy theories abound, but the roles of the major oil companies in influencing public policy on climate change remain largely obscure. This... View Details
- 2023
- Working Paper
Flow-Driven ESG Returns
I show that the recent returns to ESG investing are strongly driven by price impact
from flows towards ESG funds. Using data on institutional trades, I estimate the
market’s ability to accommodate the demand of ESG funds, which is given by the
elasticity of... View Details
Keywords: Investment Funds; Corporate Social Responsibility and Impact; Financial Markets; Investment Return
van der Beck, Philippe. "Flow-Driven ESG Returns." Swiss Finance Institute Research Paper Series, No. 21-71, November 2023.
- April 2000
- Article
The Fable of Fisher Body
By: Ramon Casadesus-Masanell and Daniel F. Spulber
General Motors' (GM) acquisition of Fisher Body is the classic example of market failure in the literature on contracts and the theory of the firm. According to the standard account, GM merged vertically with Fisher Body in 1926, a maker of auto bodies, because of... View Details
Keywords: Mergers and Acquisitions; Failure; Contracts; Vertical Integration; Market Transactions; Investment; Trust; Production; Assets; Supply Chain; Opportunities; Technology; Auto Industry
Casadesus-Masanell, Ramon, and Daniel F. Spulber. "The Fable of Fisher Body." Journal of Law & Economics 43, no. 1 (April 2000): 67–104.
- November 2019
- Case
Chile: Unrest in the Copper Nation
By: Laura Alfaro and Sarah Jeong
For decades, Chile was heralded as South America’s pillar of stable economic growth. Chile was the world’s largest producer of copper and enjoyed a long period of over 30 years of world demand for its resources. In 2013, the commodity boom ended and was replaced by a... View Details
Keywords: Copper Production; Protests; Economic Slowdown and Stagnation; Metals and Minerals; Production; Price; Mining Industry; Chile
Alfaro, Laura, and Sarah Jeong. "Chile: Unrest in the Copper Nation." Harvard Business School Case 320-051, November 2019.