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- Faculty Publications (85)
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- All HBS Web (306)
- Faculty Publications (85)
- May–June 2018
- Article
Data Uncertainty in Markov Chains: Application to Cost-Effectiveness Analyses of Medical Innovations
By: Joel Goh, Mohsen Bayati, Stefanos A. Zenios, Sundeep Singh and David Moore
Cost-effectiveness studies of medical innovations often suffer from data inadequacy. When Markov chains are used as a modeling framework for such studies, this data inadequacy can manifest itself as imprecision in the elements of the transition matrix. In this paper,... View Details
Keywords: Markov Chains; Cost Effectiveness; Medical Innovations; Colorectal Cancer; Health Care and Treatment; Cost vs Benefits; Innovation and Invention; Mathematical Methods; Health Industry
Goh, Joel, Mohsen Bayati, Stefanos A. Zenios, Sundeep Singh, and David Moore. "Data Uncertainty in Markov Chains: Application to Cost-Effectiveness Analyses of Medical Innovations." Operations Research 66, no. 3 (May–June 2018): 697–715. (Winner, 2014 INFORMS Health Applications Society Pierskalla Award & Finalist, 2014 INFORMS George E. Nicholson student paper competition.)
- August 2020 (Revised February 2021)
- Case
Luckin Coffee (A): Caffeine-fueled Growth?
By: Ramon Casadesus-Masanell and Karen Elterman
This case describes the founding of Chinese coffee chain Luckin Coffee in 2017 and its path to surpassing Starbucks as the largest coffee chain in China (by number of stores) in 2019. Unlike Starbucks stores, which were designed to be welcoming “third places” for... View Details
Keywords: Business Model; Business Earnings; Cost; Cost Management; Financial Statements; Financial Condition; Financial Management; Stocks; Profit; Revenue; Price; Food; Business History; Employment; Brands and Branding; Product Positioning; Marketing Strategy; Business Strategy; Expansion; Competitive Strategy; Food and Beverage Industry; Technology Industry; Asia; China
Casadesus-Masanell, Ramon, and Karen Elterman. "Luckin Coffee (A): Caffeine-fueled Growth?" Harvard Business School Case 721-370, August 2020. (Revised February 2021.)
- 07 Apr 2015
- First Look
First Look: April 7
invest in external R&D to acquire new product lines and in internal R&D to improve their existing product lines. A baseline model derives the theoretical implications of weaker scaling for external R&D versus internal R&D,... View Details
Keywords: Sean Silverthorne
- Research Summary
Valuation Theory and Practice
Timothy A. Luehrman's primary research interest is in the application of valuation methods to companies, businesses, and individual assets. Some of his work involves applications of tools originally developed for valuing derivative securities to the valuation of other... View Details
- February 2017 (Revised March 2018)
- Case
BIM: Finding New Ways to Grow
By: Michael Chu and Gamze Yucaoglu
BIM, Turkey’s giant retailer with a hard-discount model for the popular segments, must decide whether to launch a brand-new format challenging the modern supermarkets. Since its founding in 1995, BIM has adhered to a business model based on a relentless focus on costs... View Details
Keywords: Turkey; Decision; Emerging Markets; Private Sector; For-Profit Firms; Business Model; Business Strategy; Competitive Advantage; Growth and Development Strategy; Value Creation; Change Management; Decisions; Growth Management; Retail Industry; Turkey
Chu, Michael, and Gamze Yucaoglu. "BIM: Finding New Ways to Grow." Harvard Business School Case 317-097, February 2017. (Revised March 2018.)
- Article
Undermining Value-Based Purchasing — Lessons from the Pharmaceutical Industry
By: Leemore S. Dafny, Christopher Ody and Matt Schmitt
The analogy between value-based purchasing in pharmaceuticals and the new frontier of alternative payment models for health care providers is relatively straightforward. Insurers are increasingly demanding steep discounts from providers in exchange for inclusion in... View Details
Keywords: Drug Copayment Coupons; Prescription Drug Policy; Health Care and Treatment; Insurance; Cost; Policy; Pharmaceutical Industry
Dafny, Leemore S., Christopher Ody, and Matt Schmitt. "Undermining Value-Based Purchasing — Lessons from the Pharmaceutical Industry." New England Journal of Medicine 375, no. 21 (November 24, 2016): 2013–2015.
- June 2015
- Article
You Need an Innovation Strategy
By: Gary P. Pisano
Why is it so hard to build and maintain the capacity to innovate? The reason is not simply a failure to execute but a failure to articulate an innovation strategy that aligns innovation efforts with the overall business strategy. Without such a strategy, companies will... View Details
Keywords: Innovation Strategy
Pisano, Gary P. "You Need an Innovation Strategy." Harvard Business Review 93, no. 6 (June 2015): 44–54.
- January 2001
- Case
Valuing Project Achieve
By: Mihir A. Desai and Kathleen Luchs
Project Achieve is a start-up providing information management solutions for schools. Its founders see a need for software both to manage the volumes of information necessary to administer a school and to connect parents, teachers, and students in a more effective way.... View Details
Keywords: Business Startups; Valuation; Venture Capital; Cost of Capital; Cash Flow; Forecasting and Prediction
Desai, Mihir A., and Kathleen Luchs. "Valuing Project Achieve." Harvard Business School Case 201-080, January 2001.
- 23 Jan 2013
- Working Paper Summaries
Cost of Capital Dynamics Implied by Firm Fundamentals
Keywords: by Matthew Lyle & Charles C.Y. Wang
- Research Summary
Bargaining with Imperfect Enforcement
Joint work with Mark Williams, formerly of Exeter College, Oxford.
The game-theoretic bargaining literature insists on non-cooperative bargaining procedure but allows cooperative implementation of agreements. The effect of this is to allow free-reign of bargaining... View Details
- 2025
- Working Paper
Pushing the Envelope: The Effects of Salary Negotiations
By: Zoë B. Cullen, Bobak Pakzad-Hurson and Ricardo Perez-Truglia
Salary negotiations are a widespread phenomenon that can shape key labor market outcomes, such as welfare and inequality. We provide novel empirical and theoretical insights into the causes and consequences of salary negotiations. We conducted two field experiments... View Details
Cullen, Zoë B., Bobak Pakzad-Hurson, and Ricardo Perez-Truglia. "Pushing the Envelope: The Effects of Salary Negotiations." NBER Working Paper Series, No. 33903, June 2025.
- 10 Jul 2018
- First Look
New Research and Ideas, July 10, 2018
https://www.hbs.edu/faculty/Pages/item.aspx?num=54672 July–August 2018 Harvard Business Review The Other Diversity Dividend By: Gompers, Paul, and Silpa Kovvali Abstract—Researchers have struggled to establish a causal relationship... View Details
Keywords: Dina Gerdeman
- January 2008
- Background Note
Convertible Arbitrage
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand how convertible bonds can be viewed as a portfolio of simpler securities and to introduce an over-the-counter market. The convertible bonds that are available during the simulation are at-the-money and in-the-money so that... View Details
Coval, Joshua, and Erik Stafford. "Convertible Arbitrage." Harvard Business School Background Note 208-116, January 2008.
- February 2005 (Revised April 2006)
- Case
Rx Depot: Importing Drugs from Canada
By: Debora L. Spar
In 2002, a handful of entrepreneurs began to ship drugs from Canada into the United States, taking advantage of regulatory and price differentials across the neighboring countries. Using the Internet and a low-cost network of Canadian pharmacies, firms like Rx Depot... View Details
Keywords: Courts and Trials; Entrepreneurship; Intellectual Property; Laws and Statutes; Pharmaceutical Industry; Canada; United States
Spar, Debora L., and Adam Day. "Rx Depot: Importing Drugs from Canada." Harvard Business School Case 705-010, February 2005. (Revised April 2006.)
- 2023
- Working Paper
Much Ado About Nothing? Overreaction to Random Regulatory Audits
By: Samuel Antill and Joseph Kalmenovitz
Regulators often audit firms to detect non-compliance. Exploiting a natural experiment in the lobbying industry, we show that firms overreact to audits and this response distorts prices and reduces welfare. Each year, federal regulators audit a random sample of... View Details
Antill, Samuel, and Joseph Kalmenovitz. "Much Ado About Nothing? Overreaction to Random Regulatory Audits." Working Paper, August 2023.
- February 2018
- Article
Auctions versus Posted Prices in Online Markets
By: Liran Einav, Chiara Farronato, Jonathan Levin and Neel Sundaresan
Auctions were very popular in the early days of internet commerce, but today online sellers mostly use posted prices. We model the choice between auctions and posted prices as a trade-off between competitive price discovery and convenience. Evidence from eBay fits the... View Details
Einav, Liran, Chiara Farronato, Jonathan Levin, and Neel Sundaresan. "Auctions versus Posted Prices in Online Markets." Journal of Political Economy 126, no. 1 (February 2018): 178–215.
- June 2017
- Case
AT&T Versus Verizon: A Financial Comparison
By: V.G. Narayanan and Joel L. Heilprin
This case asks students to prepare a report comparing the financial and operating performance of AT&T and Verizon. Taking the perspective of a communications industry analyst, they must also consider the differences between and implications of the companies' business... View Details
Keywords: Financial Statements; Operations; Analysis; Business Model; Accounting; Performance Effectiveness; Telecommunications Industry
Narayanan, V.G., and Joel L. Heilprin. "AT&T Versus Verizon: A Financial Comparison." Harvard Business School Brief Case 917-543, June 2017.
Jerry R. Green
Jerry R. Green
David A. Wells Professor of Political Economy
John Leverett Professor in the University
Harvard University
Jerry Green is the John Leverett Professor in the University and the David A. Wells... View Details
- January 2025 (Revised April 2025)
- Case
Less Is More: Will Aldi's Expansion Plans Pay Off in a Crowded U.S. Grocery Market?
By: David Collis and Haisley Wert
In 2024, the discount grocery retailer Aldi announced bold U.S. expansion plans. Within five years, the German company would increase its store count by 30% to reach 3,200+ stores across the United States and approach becoming the fifth largest grocery retailer in the... View Details
Keywords: Scope; Grocery; Corporate Strategy; Expansion; Business Model; Competitive Strategy; Retail Industry; United States
Collis, David, and Haisley Wert. "Less Is More: Will Aldi's Expansion Plans Pay Off in a Crowded U.S. Grocery Market?" Harvard Business School Case 725-416, January 2025. (Revised April 2025.)
- November 2013 (Revised May 2023)
- Case
Valuing Yahoo! in 2013
By: Luis M. Viceira and Atul Khosla
In late July 2013, Danielle Engle, Managing Director of Clairemont Capital, was contemplating what to do about a large investment her fund had in the stock of Yahoo! Inc. In mid-2012, Clairemont had invested nearly $75M in Yahoo! after the tech company settled a highly... View Details
Keywords: Investment; Decision Making; Investment Activism; Business Model; Growth and Development Strategy; Valuation
Viceira, Luis M., and Atul Khosla. "Valuing Yahoo! in 2013." Harvard Business School Case 214-048, November 2013. (Revised May 2023.)