Publications
Publications
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- All HBS Web
(904)
- Faculty Publications (126)
- March 2008 (Revised March 2014)
- Case
By: Mikolaj Jan Piskorski, Thomas R. Eisenmann, Aaron Smith, David Chen and Brian Feinstein
As Facebook topped one billion monthly users in October 2012, the online social network continued to face questions about how best to monetize its surging traffic. The company could invest further in new advertising products, which represented the majority of the... View Details
- February 2008 (Revised September 2008)
- Case
Apple Inc., 2008
By: David B. Yoffie and Michael Slind
In January 2007, three decades after its incorporation, Apple Computer shed the second word in its name and became Apple Inc. With that move, the company signaled a fundamental shift away from its historic status as a vendor of the Macintosh personal computer (PC)... View Details
- January 2008
- Background Note
Index Options
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand the patterns in index option prices that are not predicted by the Black-Scholes model. In particular, the simulation focuses on two properties of options prices. First, at-the-money implied volatilities from index options... View Details
Keywords: Volatility; Stock Options; Investment; Price; Profit; Risk Management; Mathematical Methods
- December 2007 (Revised July 2008)
- Case
General Mills (A)
By: Raymond V. Gilmartin, Marco Iansiti and Bianca Buccitelli
General Mills is an 80-year-old company that specializes in consumer foods such as cereal, snacks, baking, and dinner products. Although General Mills is, on the whole, a very successful company, they have, in the recent past, had to face challenges as a result the... View Details
- 2007
- Working Paper
Irving Fisher, Economic Forecasting, and the Myth of the Business Cycle
A premier economist of the twentieth century and a founder of neoclassical thought, Irving Fisher was also an active participant in the field of economic forecasting. Fisher made theoretical contributions to the understanding of economic fluctuations, popularized the... View Details
- October 2007
- Article
The Art of Designing Markets
By: Alvin E. Roth
Traditionally, markets have been viewed as simply the confluence of supply and demand. But to function properly, they must be able to attract a sufficient number of buyers and sellers, induce participants to make their preferences clear, and overcome congestion by... View Details
- October 2007
- Article
The Effectiveness of Pre-Release Advertising for Motion Pictures: An Empirical Investigation Using a Simulated Market
By: Anita Elberse and Bharat N. Anand
One of the most visible and publicized trends in the movie industry is the escalation in movie advertising expenditures over time. Yet, the returns to movie advertising are poorly understood. The main reason is that disentangling the causal effect of advertising on... View Details
- August 2006 (Revised March 2008)
- Case
iPod vs. Cell Phone: A Mobile Music Revolution?
By: David B. Yoffie, Travis D. Merrill and Michael Slind
In 2006, a nascent market for music-enabled mobile phones was emerging to challenge Apple Computer's dominant position in the digital music industry. Through its iPod line of portable digital music devices and its iTunes Music Store, Apple controlled more than half of... View Details
- April 2006 (Revised March 2007)
- Case
PayPal Merchant Services
By: Thomas R. Eisenmann and Lauren Barley
In early 2006, PayPal management is deciding how to respond to Google's entry into online payments. PayPal, owned by eBay, has targeted online merchants outside eBay's auction community for its next wave of expansion. Google represents a potential threat to PayPal's... View Details
- April 2005
- Case
Handleman Company
By: Janice H. Hammond and Kevin Dolan
Describes the organization and operations of the Handleman Co., an intermediary in the music industry that buys recorded music and resells it to mass retailers such as Wal-Mart. The company provides distribution, inventory management, retail merchandising, and category... View Details
- March 2005
- Article
Short- and Long-term Demand Curves for Stocks: Theory and Evidence on the Dynamics of Arbitrage
By: Robin Greenwood
I develop a framework to analyze demand curves for multiple risky securities at extended horizons in a setting with limits-to-arbitrage. Following an unexpected change in uninformed investor demand for several assets, I predict returns of each security to be... View Details
- September 2003 (Revised May 2006)
- Case
Eyeblaster: Enabling the Next Generation of Online Advertising
By: Elie Ofek
Eyeblaster management has to decide on the best course of action to sustain its momentum from enabling online rich media advertising. Pressure from competitors is forcing the company to re-evaluate its previous marketing strategy that focused primarily on getting... View Details
- August 2003
- Article
When Does the Market Matter? Stock Prices and the Investment of Equity-Dependent Firms
By: Malcolm Baker, Jeremy Stein and Jeffrey Wurgler
We use a simple model of corporate investment to determine when investment will be sensitive to non-fundamental movements in stock prices. The key cross-sectional prediction of the model is that stock prices will have a stronger impact on the investment of firms that... View Details
- July 2003 (Revised August 2003)
- Case
Global Healthcare Exchange
By: Lynda M. Applegate and Jamie Ladge
Founded in March 2000 at the height of the dot-com bubble, Global Healthcare Exchange (GHX) was one of 90 online marketplaces in the health care industry. The company's founders were among the largest suppliers in the industry, including Johnson & Johnson, GE Medical,... View Details
- August 2002 (Revised August 2003)
- Case
Electronic Arts Introduces The Sims Online
By: Youngme E. Moon
Electronic Arts (EA), the world's largest independent game publisher, is preparing to launch an online, subscription-based version of the most popular PC game in history: The Sims. The new game is called "The Sims Online" and it differs from the original game in two... View Details
- June 2002 (Revised September 2005)
- Case
Online Music Distribution in a Post-Napster World
By: Youngme E. Moon
Provides a description of the rise and decline of Napster, the free Internet music-swapping service. Also describes second-generation peer-to-peer services (e.g., Gnutella) as well as paid subscription services (e.g., MusicNet, pressplay). View Details
- 2001
- Working Paper
When Does the Market Matter? Stock Prices and the Investment of Equity Dependent Firms
By: Malcolm Baker, Jeremy Stein and Jeffrey Wurgler
We use a simple model of corporate investment to determine when investment will be sensitive to non-fundamental movements in stock prices. The key cross-sectional prediction of the model is that stock prices will have a stronger impact on the investment of firms that... View Details
- October 2000 (Revised April 2001)
- Case
Cost of Capital at Ameritrade
By: Mark L. Mitchell and Erik Stafford
Ameritrade Holding Corp. is planning large marketing and technology investments to improve the company's competitive position in deep-discount brokerage by taking advantage of emerging economies of scale. In order to evaluate whether the strategy would generate... View Details
- October 2000 (Revised March 2001)
- Case
eLance.com: Building a Professional Services Marketplace
By: Lynda M. Applegate and Kristin Kohler
Launched as an eBay for services, eLance promises to leverage the capabilities of the Internet to not only change the way services are bought and sold, but change the fundamental dynamics of the global economy. Building on theories posited in the HBR article by Tim... View Details
- October 1995
- Article
New Trading Practices and Short-Run Market Efficiency
By: Kenneth A. Froot and André Perold