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- All HBS Web (784)
- Faculty Publications (351)
- February 1992 (Revised April 1993)
- Case
Acid Rain: The Southern Co. (A)
The Southern Co., an electric utility, is planning its compliance with the 1990 amendments to the Clean Air Act. The Act established a system of tradeable permits for sulfur dioxide emissions. The company must decide whether to install pollution control equipment and... View Details
Keywords: Energy Generation; Business Strategy; Environmental Sustainability; Cost vs Benefits; Financial Management; Strategic Planning; Investment Return; Government Legislation; Wastes and Waste Processing; Utilities Industry; Energy Industry; United States
Reinhardt, Forest L. "Acid Rain: The Southern Co. (A)." Harvard Business School Case 792-060, February 1992. (Revised April 1993.)
- 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.
- 2022
- Working Paper
Intertemporal Altruism
By: Felix Chopra, Armin Falk and Thomas Graeber
Most prosocial decisions involve intertemporal tradeoffs. Yet, the timing of prosocial utility flows is ambiguous and bypassed by most models of other-regarding preferences. We study the behavioral implications of the time structure of prosocial utility,... View Details
Chopra, Felix, Armin Falk, and Thomas Graeber. "Intertemporal Altruism." Working Paper, August 2022. (R&R at American Economic Journal Microeconomics.)
- June 2007 (Revised January 2009)
- Case
Nextel Partners: Put Option
By: Timothy A. Luehrman and Douglas Scott
Nextel Partners' shareholders have voted to exercise a put option that will require the company's largest shareholder, Sprint Nextel Corp., to purchase all the shares it does not already own. However, the put option does not stipulate a price to be paid, but rather a... View Details
Luehrman, Timothy A., and Douglas Scott. "Nextel Partners: Put Option." Harvard Business School Case 207-128, June 2007. (Revised January 2009.)
- October 2001 (Revised November 2001)
- Case
Provident Life and Accident Insurance: The Acquisition of Paul Revere
By: Mihir A. Desai, Frank Williamson, Mark Veblen and Yuming Zou
Provident Life & Accident Insurance Co. has made an initial bid to acquire a primary competitor, Paul Revere, from conglomerate, Textron. The due diligence process uncovers a significant block of problematic disability insurance policies. Provident is forced to assess... View Details
Keywords: Insurance; Financial Management; Mergers and Acquisitions; Policy; Investment; Business Strategy; Cash Flow; Price; Bids and Bidding; Financial Reporting; Business Conglomerates; Insurance Industry; Service Industry
Desai, Mihir A., Frank Williamson, Mark Veblen, and Yuming Zou. "Provident Life and Accident Insurance: The Acquisition of Paul Revere." Harvard Business School Case 202-044, October 2001. (Revised November 2001.)
- April 2023
- Article
Are Intermediary Constraints Priced?
By: Wenxin Du, Benjamin Hebert and Amy Wang Huber
Violations of no-arbitrage conditions measure the shadow cost of intermediary constraints. Intermediary asset pricing and intertemporal hedging together imply that the risk of these constraints tightening is priced. We describe a “forward CIP trading strategy” that... View Details
Du, Wenxin, Benjamin Hebert, and Amy Wang Huber. "Are Intermediary Constraints Priced?" Review of Financial Studies 36, no. 4 (April 2023): 1464–1507.
- 2023
- Working Paper
Complexity and Time
By: Benjamin Enke, Thomas Graeber and Ryan Oprea
We provide experimental evidence that core intertemporal choice anomalies -- including extreme short-run impatience, structural estimates of present bias, hyperbolicity and transitivity violations -- are driven by complexity rather than time or risk preferences. First,... View Details
Enke, Benjamin, Thomas Graeber, and Ryan Oprea. "Complexity and Time." NBER Working Paper Series, No. 31047, March 2023.
- January 2010 (Revised March 2013)
- Case
foursquare
By: Mikolaj Jan Piskorski, Thomas R. Eisenmann, Jeffrey J. Bussgang and David Chen
Co-founders of foursquare are deciding how to respond to competitive threats and scale up the organization. Foursquare was a location-based online service that allowed users to "check in" to a location using an application on a smartphone. Foursquare kept track of a... View Details
Keywords: Entrepreneurship; Internet and the Web; Mobile and Wireless Technology; Competitive Advantage; Web Services Industry; United States
Piskorski, Mikolaj Jan, Thomas R. Eisenmann, Jeffrey J. Bussgang, and David Chen. "foursquare." Harvard Business School Case 711-418, January 2010. (Revised March 2013.)
- 16 Jun 2015
- Working Paper Summaries
Paying Up for Fair Pay: Consumers Prefer Firms with Lower CEO-to-Worker Pay Ratios
- June 2025
- Article
Collusion in Brokered Markets
By: John William Hatfield, Scott Duke Kominers and Richard Lowery
High commissions in the U.S. residential real estate agency market present a puzzle for economic theory because brokerage is not a concentrated industry. We model brokered markets as a game in which agents post prices for customers and then choose which other agents to... View Details
Keywords: Real Estate Agents; Real Estate; Realtors; Broker Networks; Brokerage; Brokerage Commissions; ＂Brokerage Industry; Brokered Markets; Brokering; Brokers; Industrial Organization; Repeated Game Framework; ＂Repeated Games＂; Collusion; Antitrust; Microeconomics; Market Design; Theory; Game Theory; Real Estate Industry
Hatfield, John William, Scott Duke Kominers, and Richard Lowery. "Collusion in Brokered Markets." Journal of Finance 80, no. 3 (June 2025): 1417–1462.
- May 2000 (Revised January 2003)
- Case
Health Development Corporation
Health Development Corp. (HDC) owns and operates health clubs in the Greater Boston area. HDC engaged a local investment banker to explore a sale of the company. The most likely buyer views HDC's prior purchase of real estate as a negative. HDC's management is... View Details
Keywords: Cash Flow; Property; Business Exit or Shutdown; Valuation; Value; Decisions; Health Industry; Boston
Ruback, Richard S. "Health Development Corporation." Harvard Business School Case 200-049, May 2000. (Revised January 2003.)
- 06 Sep 2018
- News
Why U.S. Grocery Chains Need More (and Better) Store-Brand Products
- 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
- March 1991 (Revised April 1995)
- Case
Bundling
Recent developments in the software business point to some of the reasons why companies offer their products or services in bundles. One is the opportunity to leverage market power, as Microsoft arguably has done by bundling applications software with its operating... View Details
Brandenburger, Adam M., and Vijay Krishna. "Bundling." Harvard Business School Case 191-177, March 1991. (Revised April 1995.)
- July 1991 (Revised June 1992)
- Case
Retail Promotional Pricing: When Is a Sale Really a Sale? (A)
Addresses the controversy that surrounds highly promotional retail pricing referred to as "high-low pricing" by the trade. High-low pricing involves setting prices at an initially high level for a brief period of time, then discounting off the so-called "regular" or... View Details
Keywords: Courts and Trials; Price; Ethics; Consumer Behavior; Product Marketing; Retail Industry; Colorado
Ortmeyer, Gwendolyn K. "Retail Promotional Pricing: When Is a Sale Really a Sale? (A)." Harvard Business School Case 591-111, July 1991. (Revised June 1992.)
- September 1991
- Case
All American Pipeline
By: Timothy A. Luehrman
Goodyear is nearing its first major capital commitments for the largest investment project in its history, the All American Pipeline. The pipeline will transport heavy crude oil from California to Texas. It is the centerpiece of a major program by Goodyear to diversify... View Details
Keywords: Capital; Financial Strategy; Business Startups; Diversification; Valuation; Standards; Supply Chain; Resource Allocation; Cash Flow; Mining Industry; California; Texas
Luehrman, Timothy A. "All American Pipeline." Harvard Business School Case 292-040, September 1991.
- November 1985 (Revised April 1990)
- Case
Signode Industries, Inc. (A)
Signode Industries' packaging division manufactures steel and plastic strapping. In 1981 the company underwent the largest leveraged buyout in U.S. corporate history. The case focuses on the packaging division's need to maintain high profitability in a declining market... View Details
Moriarty, Rowland T., Jr., David May, and Gordon Swartz. "Signode Industries, Inc. (A)." Harvard Business School Case 586-059, November 1985. (Revised April 1990.)
- May 2018
- Article
The Downside of Downtime: The Prevalence and Work Pacing Consequences of Idle Time at Work
By: Andrew Brodsky and Teresa M. Amabile
Although both media commentary and academic research have focused much attention on the dilemma of employees being too busy, this paper presents evidence of the opposite phenomenon, in which employees do not have enough work to fill their time and are left with hours... View Details
Brodsky, Andrew, and Teresa M. Amabile. "The Downside of Downtime: The Prevalence and Work Pacing Consequences of Idle Time at Work." Journal of Applied Psychology 103, no. 5 (May 2018): 496–512.
- July 1989
- Case
NWA, Inc. - Northwest Airlines Revenue Management
Northwest Airlines is evaluating improvements to its revenue management system. This system executes a program of economic price discrimination under which the airline attempts to control the conditions on its discount fare offerings. Students must evaluate the effect... View Details
Keywords: Asset Management; Air Transportation; Management Systems; Corporate Finance; Air Transportation Industry; United States
Tiemann, Jonathan. "NWA, Inc. - Northwest Airlines Revenue Management." Harvard Business School Case 290-007, July 1989.